Weekly Intelligence Report – 09 Feb 2024

Published On : 2024-02-08
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Weekly Intelligence Report – 09 Feb 2024

Ransomware of the Week

CYFIRMA Research and Advisory Team would like to highlight ransomware trends and insights gathered while monitoring various forums. This includes multiple – industries, geography, and technology – which could be relevant to your organization.

Type: Ransomware.
Target Technologies: MS Windows

Introduction
CYFIRMA Research and Advisory Team has found Faust ransomware in the wild while monitoring various underground forums as part of our Threat Discovery Process.

Faust Ransomware
Faust is a variant of the Phobos ransomware family which was first seen at the end of 2022. The Phobos ransomware family, originating in 2019, is infamous for its encryption of victims’ files, marking a significant presence in cybercrime operations.

Researchers found a document with VBA script that spreads the FAUST ransomware, a Phobos variant. The attackers utilized the Gitea service to store several files encoded in Base64, each carrying a malicious binary. Once injected into a system’s memory, these files trigger a file encryption attack.

Attack flow (Source: Surface web) Document Analysis
In the identified XLAM document, a VBA script is embedded (It appears that threat actors may have utilized phishing methods to deliver the document).

When the document is opened, the script initiates PowerShell through the “Workbook_Open()” function. It proceeds to fetch Base64-encoded data from Gitea, decoded into a harmless XLSX file. This file is saved in the TEMP folder and automatically opened, creating a deceptive appearance of completion and safety, which can mislead users.

The image below reveals the code extracted from the variable “SkSLjvNc.” The PowerShell script downloads data from hxxps://gitea[.]com/JoinPokingo/JingaPol/raw/branch/main/cfmifs_CRPT[.]txt. It then extracts the specific malicious portion from “cfmifs_CRPT[.]txt” using the pattern “DICK{(.*)}DICK” and decodes the result from Base64.

Finally, a random folder is chosen within “$env:APPDATA..\Local,” and two randomly generated characters are added to the folder name, providing it with a new identity. The executable, named “AVG update.exe,” is then stored in this freshly named folder.

The PowerShell script(Source: Surface web)

EXE File Downloader
The “AVG update.exe” executable works as a downloader, designed with extra code to avoid detection and make analysis difficult. It uses a technique to inject the malicious code into a new process by allocating Read-Write-Execute (RWE) memory. Furthermore, the file encodes all its strings and combines them with specific hexadecimal keys before using them.

Below figure shows the assembly code for obtaining a DLL name from the encoded string “blogaudit” utilizing XOR hex keys.

“blogauditblo” ^ 0x29293d292439575B5A262023 = “KERNEL32.DLL”

Decoding the DLL name (Source: Surface web) It includes the following functions:

  • It decodes its “.rdata” section to acquire an MSIL execution file and a randomly generated string as the class name, saving it as “SmartScreen Defender Windows.exe” in the TEMP folder.
  • Retrieves a file from the URL “hxxps://gitea[.]com/JoinPokingo/JingaPol/raw/branch/main/AppVStreamingUX_FST[.]t xt” using the command “cmd /C curl -s.”
  • Searches the pattern “DICK{(.*)}DICK” in Base64-decoded “AppVStreamingUX_FST.txt”. And extracts the data to deploy Base64 decoding to acquire the shellcode.
  • Leverages essential APIs such as ZwAllocateVirtualMemory, NtWriteVirtualMemory, NtProtectVirtualMemory, and RtlCreateUserThread to inject the shellcode into “SmartScreen Defender Windows.exe.”

The attacker reserves a portion of the target process’s memory, inserts malicious code, and invokes the payload’s entry point.

Ransomware:
The ransomware verifies the Mutex object to confirm singular process execution. It establishes persistence by creating a registry entry in “HKCU\Software\Microsoft\Windows\CurrentVersion\Run” and duplicating itself into two directories: “%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup” and “C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup.”

These folders play a role in Windows startup settings. The first is personalized for users, initiating programs at their login, while the second is system-wide, impacting all users during system startup. They are essential for the automatic execution of the FAUST Ransomware.

To prevent system damage, double encryption of files, or encryption of its ransom information, the ransomware includes an exclusion list:

  • File extensions: faust, actin, DIKE, Acton, actor, Acuff, FILE, Acuna, fullz, MMXXII, GrafGrafel, kmrox, s0m1n, qos, cg, ext, rdptest, S0va, 6y8dghklp, SHTORM, NURRI, GHOST, FF6OM6, blue, NX, BACKJOHN, OWN, FS23, 2QZ3, top, blackrock, CHCRBO, G-STARS, faust, unknown, STEEL, worry, WIN, duck, fopra, unique, acute, adage, make, Adair, MLF, magic, Adame, banhu, banjo, Banks, Banta, Barak, Caleb, Cales, Caley, calix, Calle, Calum, Calvo, deuce, Dever, devil, Devoe, Devon, Devos, dewar, eight, eject, eking, Elbie, elbow, elder, phobos, help, blend, bqux, com, mamba, KARLOS, DDoS, phoenix, PLUT, karma, bbc, capital, wallet, lks, tech, s1g2n3a4l, murk, makop, ebaka, jook, logan, fiasko, gucci, decrypt, ooh, non, grt, lizard, flscrypt, sdk, 2023, and vhdv.
  • Directories: C:\Windows and C:\ProgramData\microsoft\windows\caches
  • Filenames: info.hta, info.txt, boot.ini, bootfont.bin, ntldr, ntdetect.com, and io.sys.

Similar to the typical behavior of Phobos variants, FAUST ransomware preserves the decryption function within its configuration.

It also initiates multiple threads to perform various tasks. These tasks include deploying encryption, scanning logical drives, searching for network/sharing resources, scanning files individually, and explicitly seeking database-related files (such as fdb, sql, 4dd, 4dl, abs, abx, accdb, accdc, accde, adb, adf, ckp, db, db-journal, db-shm, db-wal, db2, db3, dbc, dbf, dbs, dbt, dbv, dcb, dp1, eco, edb, epim, fcd, gdb, mdb, mdf, ldf, myd, ndf, nwdb, nyf, sqlitedb, sqlite3, and sqlite).

The ransomware encrypts the file and encrypted files carry the extension “.id[<<ID>>- 3512].[[email protected]].faust.”, additionally it creates info.txt and info.hta files in the directories containing the encrypted files.

Ransom note of Faust (info.hta) (Source: Surface web)

Screenshot of Faust’s text file (“info.txt”) (Source: Surface web)

Relevancy & Insights:

  • This ransomware specifically targets the widely used Windows Operating System, which is prevalent across numerous industries and organizations.
  • Ransomware evades network defenses by disabling Windows Firewall, by modifying registry key HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\SharedAccess\Paramet ers\FirewallPolicy\PublicProfile\EnableFirewall setting the DWORD values to 0x00000000.
  • The ransomware deletes the file “C:\$SysReset\Logs\Timestamp.xml”, this hampers the system’s ability to track events or diagnostics, impairing its capability to actively monitor and record system-related activities.
  • The ransomware modifies the value of the registry key `HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\SharedAccess\Parame ters\FirewallPolicy\PublicProfile\DoNotAllowExceptions` to `0x00000000`. This alteration empowers the ransomware to bypass firewall exceptions, giving it the ability to control firewall settings. This manipulation enables unauthorized network communication, allowing the ransomware to carry out its malicious activities with greater ease.
  • Detect-Debug-Environment: Debugging environments are used by developers to analyze and troubleshoot software. This technique is used by the ransomware to determine whether it is operating in a debug environment. This feature aids the ransomware in avoiding analysis and detection attempts.
  • The ransomware is making calls to the Windows Management Instrumentation (WMI) framework. WMI is a powerful tool used by many legitimate applications and services, but it can also be exploited by malware to execute commands, collect information, or perform system modifications.

Following are the TTPs based on the MITRE Attack Framework.

Sr. No Tactics Techniques/Sub-Techniques
1 TA0002: Execution T1053: Scheduled Task/Job
T1129: Shared Modules
2 TA0003: Persistence T1053: Scheduled Task/Job
T1547.001: Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder
3 TA0004: Privilege Escalation T1053: Scheduled Task/Job
T1055: Process Injection
T1134: Access Token Manipulation
T1547.001: Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder
4 TA0005: Defense Evasion T1027: Obfuscated Files or Information
T1036: Masquerading
T1055: Process Injection
T1070.004: Indicator Removal: File Deletion
T1134: Access Token Manipulation
T1222: File and Directory Permissions Modification
T1497: Virtualization/Sandbox Evasion
T1562.001: Impair Defenses: Disable or Modify Tools
T1564.001: Hide Artifacts: Hidden Files and Directories
5 TA0006: Credential Access T1003: OS Credential Dumping
T1056: Input Capture
6 TA0007: Discovery T1012: Query Registry
T1016: System Network Configuration Discovery
T1057: Process Discovery
T1082: System Information Discovery
T1083: File and Directory Discovery
T1135: Network Share Discovery
T1497: Virtualization/Sandbox Evasion
T1518.001: Software Discovery: Security Software Discovery
T1614: System Location Discovery
7 TA0008: Lateral Movement T1080: Taint Shared Content
8 TA0009: Collection T1005: Data from Local System
T1056: Input Capture
9 TA0040: Impact T1486: Data Encrypted for Impact
T1490: Inhibit System Recovery

ETLM Assessment:
CYFIRMA’s assessment, based on available information, suggests that the FAUST ransomware variant, being a member of the notorious Phobos family, will likely continue to evolve and adopt new tactics in trying to bypass cybersecurity measures. With its sophisticated encryption techniques and ability to target a wide range of industries, we anticipate an increase in cyberattacks using FAUST ransomware in future. Organizations should prioritize robust cybersecurity measures and regular threat intelligence updates to mitigate the risk of falling victim to such attacks.

Indicators of Compromise
Kindly refer to the IOCs (Indicators of Compromise) Section to exercise controls on your security systems.

Sigma Rule
title: Boot Configuration Tampering Via Bcdedit.EXE tags:
– attack.impact
– attack.t1490 logsource:
category: process_creation product: windows
detection: selection_img:
– Image|endswith: ‘\bcdedit.exe’
– OriginalFileName: ‘bcdedit.exe’ selection_set:
CommandLine|contains: ‘set’ selection_cli:
– CommandLine|contains|all:
– ‘bootstatuspolicy’
– ‘ignoreallfailures’
– CommandLine|contains|all:
– ‘recoveryenabled’
– ‘no’
condition: all of selection_* fields:
– ComputerName
– User
– CommandLine falsepositives:
– Unlikely level: high
(Source: Surface web)

STRATEGIC RECOMMENDATIONS

  • Implement competent security protocols and encryption, authentication, or access credentials configurations to access critical systems in your cloud and local environments.
  • Ensure that backups of critical systems are maintained which can be used to restore data in case a need arises.

MANAGEMENT RECOMMENDATIONS

  • A data breach prevention plan must be developed considering, (a) the type of data being managed by the company; (b) the remediation process; (c) where and how the data is stored; (d) if there is an obligation to notify the local authority.
  • Enable zero-trust architecture and multifactor authentication (MFA) to mitigate the compromise of credentials.
  • Foster a culture of cybersecurity, where you encourage and invest in employee training so that security is an integral part of your organization.

TACTICAL RECOMMENDATIONS

  • Update all applications/software regularly with the latest versions and security patches alike.
  • Add the Sigma rules for threat detection and monitoring which will help to detect anomalies in log events, identify and monitor suspicious activities.
  • Build and undertake safeguarding measures by monitoring/ blocking the IOCs and strengthening defence based on the tactical intelligence provided.

Trending Malware of the Week

Type: Remote Access Trojan (RAT)
Objective: Remote Access, Espionage
Threat Actor: Patchwork
Target Technology: Android OS
Target Geographies: Pakistan, India

Active Malware of the Week
This week “VajraSpy” is trending.

Summary
Researchers have identified a new cyberespionage campaign linked to the Patchwork APT group. The campaign utilized An Android remote access trojan (RAT) known as VajraSpy was found in 12 malicious applications, six were available on Google Play containing VajraSpy RAT codes, and additional six were spread in the wild. The Google Play apps garnered over 1,400 installs and remain accessible on alternative platforms. Weak operational security in one of the apps resulted in the exposure of victim data, enabling the researchers to geolocate 148 compromised devices in Pakistan and India. These locations are indicative of the likely actual targets of the attacks.

VajraSpy
VajraSpy, a malware, has a range of espionage functionalities that can be expanded based on the permissions granted to the app bundled with its code. Its capabilities are summarized as follows:

  • Gather and transmit personal data from the infected device, including contacts, call logs, and SMS messages.
  • Intercept and extract messages from popular encrypted communication apps like WhatsApp and Signal.
  • Record phone calls.
  • Activate the device’s camera to take pictures, turning it into a surveillance tool.
  • Intercept notifications from various apps in real time.
  • Search and exfiltrate documents, images, audio, and other types of files.

Decoding VajraSpy: Malicious Apps on the Prowl

In January 2023, researchers identified a trojanized news app named Rafaqat تقافر (the Urdu word translates to Fellowship), designed to steal user information. Subsequent investigation revealed several other applications sharing the same malicious code as Rafaqat تقافر, some of which had identical developer certificates and user interfaces. A total of 12 trojanized apps were analysed, with six (including Rafaqat تقافر) initially available on Google Play and the remaining six discovered elsewhere. The Google Play apps were collectively downloaded over 1,400 times.

The researchers suggest that the threat actors likely employed a romance scam tactic to trick victims into installing the malware. All apps on Google Play were uploaded between April 2021 and March 2023. Notably, they share similarities such as being messaging applications and being bundled with the VajraSpy RAT code. MeetMe and Chit Chat have identical user login interfaces, while Hello Chat (not on Google Play) and Chit Chat share the same developer certificate. The apps’ appearance dates on Google Play range from April 2021 to March 2023, with Chit Chat being the most recent, appearing in March 2023. The following applications were previously available on Google Play but are no longer accessible on the platform:

  • Rafaqat تقافر (news)
  • Privee Talk (messaging)
  • MeetMe (messaging)
  • Let’s Chat (messaging)
  • Quick Chat (messaging)
  • Chit Chat (messaging)

In addition to the previously available Google Play apps, six more messaging applications were identified on VirusTotal. YohooTalk was the first, appearing in February 2022, followed by TikTalk in late April 2022.Researchers identified TikTalk and shared its download domain (fich[.]buzz). Subsequently, Hello Chat was uploaded in April 2023, and Nidus and GlowChat in July 2023. Lastly, Wave Chat appeared in September 2023. All six of these trojanized apps share the same malicious code as those initially found on Google Play. The Following apps found outside of Google Play are fraudulent messaging applications.

  • Hello Chat
  • YohooTalk
  • TikTalk
  • Nidus
  • GlowChat
  • Wave Chat Technical Analysis

VajraSpy, a customizable trojan typically posing as a messaging app, is employed for user data exfiltration. Researchers have observed consistent class names across all instances of the malware, even in samples discovered by other researchers.

VajraSpy’s malicious capabilities vary depending on the permissions granted to the trojanized application. To facilitate analysis, researchers have categorized the trojanized apps into three groups.

Group 1: Trojanized messaging applications with basic functionalities

The initial group consists of trojanized messaging applications that were once on Google Play, such as MeetMe, Privee Talk, Let’s Chat, Quick Chat, GlowChat, and Chit Chat, along with Hello Chat, which wasn’t available on Google Play. Despite offering standard messaging features, these apps mandate users to create accounts. Account creation involves phone number verification through a one-time SMS code. However, VajraSpy operates irrespective of account creation status. The potential purpose of verifying the phone number may be to ascertain the victim’s country code, though this is speculative. These apps share the same malicious functionality, being capable of exfiltrating the following:

  • contacts,
  • SMS messages,
  • call logs,
  • device location,
  • a list of installed apps, and
  • files with specific extensions (.pdf, .doc, .docx, .txt, .ppt, .pptx, .xls, .xlsx, .jpg, .jpeg, .png, .mp3, .Om4a, .aac, and .opus).

Certain apps have the capability to exploit permissions to access notifications. With this permission, VajraSpy can intercept messages from various messaging applications, including SMS messages. The attackers utilized Firebase Hosting, a web content hosting service, as the Command and Control (C&C) server. Besides functioning as the C&C server, it was employed to store victims’ account information and exchanged messages. The researchers reported the server to Google, as it falls under Firebase, a service provided by Google.

Group 2: trojanized messaging applications with advanced functionalities

Group Two includes TikTalk, Nidus, YohooTalk, Wave Chat, and VajraSpy variants like Crazy Talk. Similar to Group One, these apps prompt users to create accounts and verify phone numbers through a one-time SMS code, with VajraSpy running regardless of account creation status. Apps in Group Two have enhanced capabilities compared to Group One. In addition to Group One’s features, they can utilize built-in accessibility options to intercept communication in WhatsApp, WhatsApp Business, and Signal.

VajraSpy logs and uploads this communication to the Firebase-hosted C&C server, showing real-time logging of WhatsApp communication. These apps can spy on chat communications, intercept notifications, and exfiltrate received notifications and exchanged messages in WhatsApp, WhatsApp Business, and Signal.

Wave Chat, part of Group Two, stands out with additional malicious capabilities. Upon launch, it requests accessibility services, automatically enabling necessary permissions and expanding VajraSpy’s device access. In addition to previous functionalities, Wave Chat can also

  • Record phone calls,
  • Record calls from WhatsApp, WhatsApp Business, Signal, and Telegram.
  • Log keystrokes,
  • Take pictures using the camera.
  • Record the surrounding audio.
  • Scan for Wi-Fi networks.

It receives C&C commands to take pictures and record audio, either for 60 seconds (by default) or for the amount of time specified in the server response, sending the data via POST requests to the C&C. Wave Chat employs a Firebase server for commands and storing user messages, SMS messages, and contact lists, while a different C&C server, using Retrofit (Retrofit is an Android REST client in Java that makes it easy to retrieve and upload data via a REST-based web service), handles other exfiltrated data through unencrypted HTTP uploads.

Group 3: non-messaging applications

The only application in Group Three is the one that initiated this research – Rafaqat تقافر. Unlike other Group Three apps, it doesn’t serve as a messaging app but claims to deliver news. As news apps typically don’t request intrusive permissions, Rafaqat تقافر’s malicious capabilities are limited compared to other analyzed apps.

Uploaded on October 26th, 2022, on Google Play by a developer named Mohammad Rizwan, Rafaqat تقافر gained over a thousand installs before removal. Interestingly, the same developer submitted two more apps with an identical name and malicious code weeks before Rafaqat تقافر, but they were not published on Google Play. The app requires a phone number for login but lacks number verification, allowing the use of any phone number. Rafaqat تقافر can intercept notifications and exfiltrate contacts and files with specific extensions (.pdf, .doc, .docx, .txt, .ppt, .pptx, .xls, .xlsx, .jpg, .jpeg, .png, .mp3, .Om4a, .aac, and .opus).

INSIGHTS

  • The discovered malicious code, named VajraSpy by APT-Q-43, was initially discovered in March 2022, with a primary focus on diplomatic and government entities. In March 2023, a threat report from researchers detailed the takedown operations and tactics of various APT groups, including Patchwork APT. Subsequently, in November 2023, another report from researchers associated malicious apps with VajraSpy, operated by Fire Demon Snake (APT-C-52). The shared code among these apps confirms their relation to VajraSpy. The collective information from these reports contributes to the attribution of VajraSpy to the Patchwork APT group.
  • The use of targeted honey-trap romance scams indicates a high level of social engineering employed by threat actors to compromise specific individuals. The attribution of VajraSpy to different APT groups highlights the evolving nature of cyber threats and the need for continuous research and analysis to understand and mitigate such risks. The coordinated efforts of multiple research teams contribute to a more comprehensive understanding of VajraSpy’s capabilities and its association with specific threat actors.
  • VajraSpy strategically capitalizes on users’ reliance on messaging applications by disguising itself on Google Play, exploiting the inherent trust associated with communication tools. Additionally, the malware showcases a resilient and persistent nature, continuing its operation even if users fail to complete the account creation or phone number verification during the initial setup. These features highlight the malware’s sophisticated approach to maintaining stealth and effectiveness in compromising Android devices.

Following are the TTPs based on the MITRE Attack Framework.

Sr. No Tactics Techniques/Sub-Techniques
1 Persistence T1398: Boot or Logon Initialization Scripts
2 Discovery T1420: File and Directory Discovery
T1422: System Network Configuration Discovery
T1426: System Information Discovery
T1418: Software Discovery
3 Collection T1533: Data from Local System
T1430: Location Tracking
T1636.002: Protected User Data: Call Logs
T1636.003: Protected User Data: Contact List
T1636.004: Protected User Data: SMS Messages
T1517: Access Notifications
T1429: Audio Capture
T1512: Video Capture
T1417.001: Input Capture: Keylogging
4 Command and Control T1437.001: Application Layer Protocol: Web Protocols
T1481.003: Web Service: One-Way Communication
5 Exfiltration T1646: Exfiltration Over C2 Channel
6 Impact T1641: Data Manipulation

ETLM ASSESSMENT
From the ETLM perspective, CYFIRMA anticipates that in the evolving landscape of cybersecurity, cybercriminals are increasingly leveraging social engineering as a formidable weapon, indicating a trend of collecting private information from high-profile users. The multifaceted nature of VajraSpy’s espionage functionalities, ranging from data theft to the interception of encrypted communications and even the potential compromise of the device’s camera for surveillance purposes, suggests ongoing and future risks to both personal privacy and sensitive corporate information. Given its sophisticated and adaptive nature, there is an anticipation that this campaign or threat actor may extend their target geographies in the future.

IOCs:
Kindly refer to the IOCs Section to exercise controls on your security systems.

STRATEGIC RECOMMENDATIONS

  • Maintain an up-to-date inventory of all active software used within the organization and perform regular self-audit of workstations, servers, laptops, mobile devices to identify unauthorized/ restricted software.
  • Implement Mobile Device Management (MDM) policy to enhance corporate data security by monitoring, managing, and securing mobile devices such as laptops, smartphones, and tablets that are used in enterprises.
  • Configure organization’s intrusion detection systems (IDS), intrusion prevention systems (IPS), or any network defence mechanisms in place to alert on — and upon review, consider blocking connection attempts to and from — the external IP addresses and domains listed in the appendix.

MANAGEMENT RECOMMENDATIONS
Security Awareness training should be mandated for all company employees. The training should ensure that employees:

  • Avoid downloading and executing files from unverified sources.
  • Move beyond the traditional model of security awareness towards Improved Simulation and training exercises that mimic real attack scenarios, account for behaviors that lead to a compromise, and are measured against real attacks the organization receives.
  • Regularly reinforce awareness of unauthorized attempts with end-users across the environment and emphasize the human weakness in mandatory information security training sessions.

TACTICAL RECOMMENDATIONS

  • Build and undertake safeguarding measures by monitoring/ blocking the IOCs and strengthening defence based on the tactical intelligence provided.
  • Enable network traffic/security monitoring, security incident detection, notification, and alerting by leveraging SIEM solutions.
  • Enforce policies to validate third-party software before installation.

Weekly Intelligence Trends/Advisory

Weekly Attack Type and Trends

Key Intelligence Signals:

  • Attack Type: Malware Implant, Ransomware Attacks, Vulnerabilities & Exploits, Data Leaks.
  • Objective: Unauthorized Access, Data Theft, Data Encryption, Financial Gains, Espionage.
  • Business Impact: Data Loss, Financial Loss, Reputational Damage, Loss of Intellectual Property, Operational Disruption.
  • Ransomware –LockBit 3.0 Ransomware | Malware – VajraSpy
  • LockBit 3.0 Ransomware – One of the ransomware groups.
  • Please refer to the trending malware advisory for details on the following:
  • Malware – VajraSpy
  • Behaviour –Most of these malwares use phishing and social engineering techniques as their initial attack vectors. Apart from these techniques, exploitation of vulnerabilities, defence evasion, and persistence tactics are being observed.

Threat Actor in Focus

Nation-based Threat Actor Breached into Cloudflare Network

  • Threat Actors: Unknown
  • Attack Type: Unauthorized Access
  • Objective: Obtaining persistent and widespread access to Cloudflare’s global network
  • Target Technology: Collaboration platform
  • Target Geographies: US and Brazil
  • Target Industries: Information Technology
  • Business Impact: Data Loss, Data exfiltration, Operational Disruption

Summary:
In a recent observation Cloudflare revealed that in November 2023, they detected a security breach, nine days after a threat actor utilized credentials obtained from the October Okta hack to access their internal systems. The stolen login information, including an access token and three service account credentials, had not been rotated post-Okta incident, allowing the attackers to conduct reconnaissance activities on Cloudflare’s systems from November 14. Although network segmentation prevented access to certain critical systems, the attackers managed to infiltrate an AWS environment and Atlassian Jira and Confluence. They searched the wiki for specific keywords related to Cloudflare’s network and accessed a total of 36 Jira tickets and 202 wiki pages. The attackers created and maintained an Atlassian account for persistent access, installed the Sliver Adversary Emulation Framework to move laterally within the environment, and attempted access to non-production servers.

While they viewed and downloaded source code repositories related to backups, network configuration, and identity management, Cloudflare promptly rotated encrypted secrets and terminated unauthorized accounts upon detection. The company implemented firewall rules to block attacker IP addresses and removed the malicious framework. Cloudflare confirmed no evidence of access to critical systems beyond the Atlassian suite and initiated comprehensive security measures, including rotating credentials, triaging systems, and reimagining machines across its global network. Despite the attack’s goal to gain insight into Cloudflare’s infrastructure, no further compromise was detected following investigations.

Relevancy & Insights:
The breach occurred solely due to the theft of credentials in a prior attack into Okta from where the threat actor fetched credentials and orchestrated another attack in November. Similar to this attack, threat actors whether they are ransomware groups or advanced persistent threat (APT) actors, are exploiting stolen credentials documented in stealer logs to gain unauthorized access to internal networks and accomplish their objectives.

ETLM Assessment:
The threat actor believed to be nation-based, employed stolen credentials to carry out their malicious agenda. The increasing prevalence of stealer logs poses a growing threat, with these logs frequently utilized for cyber-attacks across various industries. Major compromises in the threat landscape have been attributed to the exploitation of stealer logs. Implementing credential rotation and enforcing strict policies regarding the use of company laptops exclusively for company purposes are essential best practices. It is imperative to adopt these measures to mitigate the risk of successful attacks and limit the opportunity for threat actors to exploit credentials obtained from stealer logs.

Recommendations:

  • Implement a robust credential rotation policy to ensure that access tokens and service account credentials are regularly rotated, especially following security incidents like the Okta hack. This practice can minimize the risk of unauthorized access using compromised credentials.
  • Provide comprehensive training and awareness programs for employees on cybersecurity best practices, including recognizing and reporting suspicious activities, maintaining strong password hygiene, and adhering to security policies and procedures.
  • Strengthen third-party risk management practices, particularly when relying on service providers like Atlassian. Conduct thorough security assessments of third-party vendors and ensure they adhere to robust security standards and practices.
  • Integrate threat intelligence feeds and services to proactively identify and block known malicious actors and IP addresses. Leverage threat intelligence to enhance firewall rules and access controls, ensuring timely detection and response to emerging threats.

Indicators of Compromise
Kindly refer to the IOCs (Indicators of Compromise) Section to exercise controls on your security systems.

Major Geopolitical Developments in Cybersecurity

US agencies warn of Chinese cyber threat in a Congressional hearing
The directors of the FBI, NSA, and the Cybersecurity and Infrastructure Security Agency have warned of the growing Chinese cyber threat at a recent congressional hearing. According to their statement, the Volt Typhoon hacking group is planting malware bombs on network routers and other internet-connected devices that, if triggered, could disrupt water, power, and rail services, possibly causing widespread chaos or even injuring and killing US citizens.

FBI Director Christopher Wray told Congress that the Chinese government is targeting US critical infrastructure, including the power grid, water treatment facilities, and pipelines, in order to stage future destructive attacks. According to the agency, China’s hackers are positioning on American infrastructure in preparation to wreak havoc and cause real-world harm to American citizens and communities, if and when China decides the time has come to strike. The new wave of Chinese hackers has diversified their targets beyond political and military entities. These groups have positioned themselves across civilian infrastructure in a way that gives it a possibility to wreak havoc on the general public in the event of a conflict.

According to CISA, a cyber-attack on infrastructure could cause massive disruption. The agency chief warned of a Colonial Pipeline-like scenario (2021 cyber-attack that shut down gas to the Eastern Seaboard for several days) on a massive scale. If not one pipeline, but many pipelines were to be disrupted and telecommunications were to go down or trains to get derailed, the disruption could be of catastrophic consequences.

ETLM Assessment:
Last year, Volt Typhoon and other APTs like Mustang Panda have been focused on countries surrounding the South China Sea, where China presses territorial claims on countries like the Philippines, Vietnam or Indonesia, as well as on the United States, with which China is in conflict over primacy in the region and global affairs as a whole. Guam; a US territory in the Western Pacific that is home to significant US military bases, has allegedly been targeted. Chinese hackers have been lately mainly focusing on the defense industrial base, successfully compromising the networks of contractors to the Pentagon’s U.S. Transportation Command 20 times in a single year, while many other incursions have probably never been found. As we have warned in an earlier report, given the increasingly assertive Chinese posturing, it was likely that Beijing’s hackers were trying to position themselves in a way it could try to paralyze U.S. critical infrastructure in case of an eruption of conflict between the two countries over the issue of Taiwanese or Philippine waters. An attempt to induce societal panic in their adversary in case of conflict is inherent part of Chinese military doctrine and targeting of critical infrastructure in Guam could affect U.S. military operations in significant way.

Netherlands calls out Chinese hacking campaign
Dutch intelligence agencies have disclosed that Chinese state-sponsored hackers gained access to a computer network used by the Dutch Ministry of Defense last year. The campaign has been uncovered on devices on a network used for unclassified research and development. For the first time, the Dutch Defense Ministry has chosen to make public a technical report on the working methods of Chinese hackers. According to a statement by the ministry, it is important to publicly attribute such espionage activities to China, in order to increase international resilience against this type of cyber espionage.

ETLM Assessment:
The recent moves by Western countries to a more balanced trade relationship with China is pushing Beijing to double down on covert efforts to illegally gain intellectual property. China is a global champion in using cyber-attacks as a tool of statecraft, and the hands-on role of the government in the economy only reinforces the drive to use cyber-attacks for IP theft, even in matters that are of no military or dual use. China has a bigger hacking program than that of every other major nation combined, and any large company in industries outlined in Chinese development plans will need to invest into external threat landscape management solutions to stay ahead of relentless and repeated assaults by Chinese hackers.

Rise in Malware/Ransomware and Phishing

The LockBit 3.0 Ransomware impacts the Manitou Group

  • Attack Type: Ransomware
  • Target Industry: Manufacturing
  • Target Geography: France
  • Ransomware: LockBit 3.0 Ransomware
  • Objective: Data Theft, Data Encryption, Financial Gains
  • Business Impact: Financial Loss, Data Loss, Reputational Damage

Summary:
From the External Threat Landscape Management (ETLM) Perspective, CYFIRMA observed in an underground forum that a company from France; (www[.]manitou-group [.]com), was compromised by LockBit 3.0 Ransomware. Manitou Group, headquartered in France, is a heavy equipment manufacturer specializing in forklifts, telehandlers, aerial work platforms, and warehousing equipment. The compromised data encompasses a broad spectrum of information, including specifications, equipment drawings, developments, sources, tests, program code, and electrical data. It also comprises client records containing addresses, telephone numbers, payment details, Non-Disclosure Agreements (NDAs), contracts, and postal correspondence. Additionally, employee records are compromised, which include Social Security Numbers (SSNs), residential addresses, phone numbers, email addresses, dates of birth (DOB), contracts, salary information, 401(k) forms, and other sensitive documents. Furthermore, financial data such as budgets, Ernst & Young (EY) audit results, balance sheets, tax returns, project calculations, year-to-date (YTD) reports, invoices, sales reports, and numerous other financial documents have been compromised. Moreover, working documentation including operational activities, projects, price lists, internal documents, marketing materials, service work details, and spare parts data are also affected. In total, the compromised data amounts to 400 GB.

The following screenshot was observed published on the dark web:

Source: Dark Web

Relevancy & Insights:

  • Recently, we observed that the Citrix Bleed vulnerability (CVE 2023-4966), CVSS score of 9.4 (Critical), was exploited by LockBit 3.0 affiliates, enabling threat actors to circumvent password requirements and multifactor authentication (MFA). This leads to the successful hijacking of legitimate user sessions on Citrix NetScaler web application delivery control (ADC) and Gateway appliances. By taking control of these sessions, malicious actors gain elevated permissions, allowing them to harvest credentials, move laterally, and access data and resources.
  • The LockBit 3.0 Ransomware group primarily targets countries such as the United States of America, France, the United Kingdom, Germany, and Canada.
  • The LockBit 3.0 Ransomware group primarily targets industries including Business Support Services, Heavy Construction, Specialized Consumer Services, Industrial Machinery, and Health Care Providers
  • Based on the LockBit 3.0 Ransomware victims list from 1 Jan 2023 to 7 Feb 2024, the top 5 Target Countries are as follows:
  • The Top 10 Industries, most affected by LockBit 3.0 Ransomware from 1 Jan 2023 to 7 Feb 2024 are as follows:

ETLM Assessment:
CYFIRMA’s assessment underscores the persistent and widespread threat posed by LockBit 3.0 Ransomware to companies worldwide. Our observations reveal an escalating pattern, wherein LockBit 3.0 Ransomware exploits vulnerabilities in diverse products to infiltrate systems, facilitating lateral movement within organizational networks. The recent cyber incident involving the Manitou Group; a French-based manufacturing company, highlights the pervasive global danger associated with this ransomware variant.

Vulnerabilities and Exploits

Vulnerability in AVEVA Edge

  • Attack Type: Vulnerabilities & Exploits
  • Target Technology: Server applications / SCADA systems
  • Vulnerability: CVE-2023-6132 (CVSS Base Score 7.3)
  • Vulnerability Type: Uncontrolled Search Path Element (Insecure DLL loading)
  • Patch: Available

Summary:
The vulnerability allows a local user to compromise vulnerable system.

Relevancy & Insights:
The vulnerability exists due to the application loads DLL libraries in an insecure manner.

Impact :
A local user can place a specially crafted .dll file and execute arbitrary code on the victim’s system.
Affected Products: https[:]//www[.]aveva[.]com/content/dam/aveva/documents/support/cyber-security- updates/Security_Bulletin_AVEVA-2024-002.pdf

Recommendations:
Monitoring and Detection: Implement monitoring and detection mechanisms to identify unusual system behavior that might indicate an attempted exploitation of this vulnerability.

TOP 5 AFFECTED PRODUCTS OF THE WEEK

This week, CYFIRMA researchers have observed significant impacts on various products, due to a range of vulnerabilities. The following are the top 5 most affected products.

Latest Cyber-Attacks, Incidents, and Breaches

Hackers steal data of 2 million in SQL injection, cross-site scripting (XSS) attacks

  • Threat Actors: ResumeLooters
  • Attack Type: SQL injection, cross-site scripting (XSS)
  • Objective: Data Leak, Financial Gains
  • Target Technology: Web Application
  • Target Geographies: APAC (Asia Pacific region)
  • Target Industry: Employment agencies and Retail companies
  • Business Impact: Operational Disruption, Data Loss, Financial Loss

Summary:
We observed that a threat group named ‘ResumeLooters’ has stolen the personal data of over two million job seekers after compromising 65 legitimate job listings and retail sites using SQL injection and cross-site scripting (XSS) attacks. The attackers mainly focus on the APAC region, targeting sites in Australia, Taiwan, China, Thailand, India, and Vietnam to steal job seekers’ names, email addresses, phone numbers, employment history, education, and other relevant information. The threat group ResumeLooters, since its beginning, in November 2023, attempted to sell the stolen data through Telegram channels. ResumeLooters primarily employs SQL injection and XSS to breach targeted sites, mainly job-seeking and retail shops.

Relevancy & Insights:
ResumeLooters conducts SQL injection, cross-site scripting (XSS) attacks for financial gains, attempting to sell stolen data to other cybercriminals via at least two Telegram accounts that use Chinese names, namely “渗透数据中心” (Penetration Data Center) and “万国数据阿力” (World Data Ali).

ETLM Assessment:
The utilization of Chinese-speaking groups and tools, such as the Chinese version of X-Ray, by ResumeLooters strongly suggests a potential connection to China. Assessments conducted by CYFIRMA indicate a notable likelihood of ResumeLooters continuing their endeavors to infiltrate companies on a global scale. Their primary objective appears to be securing considerable financial gains through the execution of SQL injection and cross-site scripting (XSS) attacks. This persistence and global focus underscore the severity of the threat posed by ResumeLooters and necessitate heightened vigilance and robust cybersecurity measures to mitigate their activities effectively.

Data Leaks

Emirates Investment Bank Advertised in Leak Site

  • Attack Type: Data Leaks
  • Target Industry: Finance
  • Target Geography: United Arab Emirates
  • Objective: Data Theft, Financial Gains
  • Business Impact: Data Loss, Reputational Damage

Summary:
CYFIRMA Research team observed a potential access to website sale related to Emirates Investment Bank, {www[.]eibank[.]com}. Emirates Investment Bank is an independent private bank based in Dubai. It offers a wide range of investment and banking services to an exclusive, but diverse, client base of high-net-worth individuals from across the region and worldwide. Access to the Emirates Investment Bank website is being offered for sale for 10,000 USD.

Source: Underground forums

Relevancy & Insights:
Financially motivated cybercriminals consistently monitor unprotected and vulnerable systems and applications, lured by the promise of monetary rewards. Many of these perpetrators’ frequent clandestine online forums, where they participate in discussions and transactions revolving around stolen digital assets. What distinguishes these cybercriminals from other groups driven by financial gains, such as ransomware or extortion groups, is their inclination towards operating discreetly. They exploit vulnerabilities in systems or applications to gain access to valuable data, which they then advertise for sale on underground forums. Subsequently, this unlawfully obtained data is repurposed by other attackers for their own campaigns.

ETLM Assessment:
An emerging threat actor known as JustAnon69, driven primarily by financial motives, is currently engaged in actively selling access to websites within dark forums. As per CYFIRMA’s assessment, organizations located in the United Arab Emirates, which possess insufficient security measures, are identified as potential targets by this specific threat actor.

Other Observations

CYFIRMA Research team observed a potential data leak related to Beamstart, {www[.]beamstart[.]com}. BEAMSTART is a global business networking app that offers a job board, business news and content, as well as career resources. The platform allows users to hire talent, promote their companies, raise capital, and form professional connections with people around the world. The compromised data includes Account IDs, Profiles, Names, Emails, Phone Numbers, Hashed Passwords, Usernames, City, Country, and other sensitive information. The total size of the compressed data file is approximately 81.6 MB.

Source: Underground forums

STRATEGIC RECOMMENDATIONS

  • Attack Surface Management should be adopted by organizations, ensuring that a continuous closed-loop process is created between attack surface monitoring and security testing.
  • Deploy a unified threat management strategy – including malware detection, deep learning neural networks, and anti-exploit technology – combined with vulnerability and risk mitigation processes.
  • Incorporate Digital Risk Protection (DRP) in the overall security posture that acts as a proactive defence against external threats targeting unsuspecting customers.
  • Implement a holistic security strategy that includes controls for attack surface reduction, effective patch management, active network monitoring, through next generation security solutions and ready to go incident response plan.
  • Create risk-based vulnerability management with deep knowledge about each asset. Assign a triaged risk score based on the type of vulnerability and criticality of the asset to help ensure that the most severe and dangerous vulnerabilities are dealt with first.

MANAGEMENT RECOMMENDATIONS

  • Take advantage of global Cyber Intelligence providing valuable insights on threat actor activity, detection, and mitigation techniques.
  • Proactively monitor the effectiveness of risk-based information security strategy, the security controls applied and the proper implementation of security technologies, followed by corrective actions remediations, and lessons learned.
  • Move beyond the traditional model of security awareness towards improved simulation and training exercises that mimic real attack scenarios, account for behaviours that lead to a compromised, and, are measured against real attacks the organization receives.
  • Consider implementing Network Traffic Analysis (NTA) and Network Detection and Response (NDR) security systems to compensate for the shortcoming of EDR and SIEM solutions.
  • Detection processes are tested to ensure awareness of anomalous events. Timely communication of anomalies and continuously evolved to keep up with refined ransomware threats.

TACTICAL RECOMMENDATIONS

  • Patch software/applications as soon as updates are available. Where feasible, automated remediation should be deployed since vulnerabilities are one of the top attack vectors.
  • Consider using security automation to speed up threat detection, improved incident response, increased the visibility of security metrics, and rapid execution of security checklists.
  • Build and undertake safeguarding measures by monitoring/ blocking the IOCs and strengthen defences based on tactical intelligence provided.
  • Deploy detection technologies that are behavioural anomaly-based to detect ransomware attacks and help to take appropriate measures.
  • Implement a combination of security control such as reCAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart), Device fingerprinting, IP backlisting, Rate-limiting, and Account lockout to thwart automated brute-force attacks.
  • Ensure email and web content filtering uses real-time blocklists, reputation services, and other similar mechanisms to avoid accepting content from known and potentially malicious sources.