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Rewterz Threat Advisory – CVE-2022-41274 – SAP Disclosure Management Vulnerability
December 15, 2022
Rewterz Threat Advisory – CVE-2022-41264 – SAP BASIS Vulnerability
December 15, 2022

Rewterz Threat Alert – BumbleBee Malware – Active IOCs

December 15, 2022

Severity

Medium

Analysis Summary

The malware loader, Bumblebee, is used to download Cobalt Strike and perhaps other malware such as ransomware. It also replaces the BazarLoader backdoor, which is previously used to transmit ransomware payloads. This new malware is linked to a number of threat actors, including several well-known ransomware.

According to researchers, the appearance of Bumblebee in phishing attempts in March correlates with a drop in the use of BazarLoader for distributing file-encrypting malware.
Bumblebee is distributed in the form of ISO files that contain malicious DLL and shortcut files. It employs different techniques to avoid detection. It can determine virtualization environment processes to prevent operating on virtual machines. Banking information, password, and identity theft are the main impact of this malware. 
Bumblebee malware is designed to download and run additional payloads in order to infect computers with other malware. Bumblebee can be used to inject information stealers, cryptocurrency miners, and other malware since it is designed to drop extra payloads. The C2 (Command and Control) server is where Bumblebee gets commands. It is used by attackers to download and execute files directly, inject malicious DLLs, and create operating system persistence. This new malware is linked to a number of threat actors, including several well-known ransomware.

Impact

  • Credential Theft 
  • Financial Loss 
  • Sensitive Data Exposure

Indicators of Compromise

MD5

  • 7ef3d51a6f0d5f699358a66c2a3c105c
  • 09a4e58fdd73ca7edb078175d9aba685
  • 5d370eb5c3b5d29c98d51e3a4e982a63

SHA-256

  • 2fda2cd005eb19e2f9e677e8315578533c7ffa8425dcd752794243c23c54add9
  • 645ee27f510d39c58276a251ca1a4c361d06ed8d0ec6b2a548b36246991a7612
  • 5154ad2319705806fb829e709008a1cb270dea2154d7b65cbd9dfe04768261e7

SHA-1

  • d8f7d0c7b43d200cea47078d2fd1b1fa9932f824
  • 21e86edd945665a69a3908ca07f1ac762d33dfc0
  • 040311e1d9f2077e0579f2b5b4d289cb12079341

Remediation

  • Block all threat indicators at your respective controls. 
  • Search for IOCs in your environment.
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      • Compromise Assessment
      • APT Assessment
      • Penetration Testing
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    • Respond
      • Incident Response
      • Incident Analysis
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    • SOC Consultancy
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    •     SOC Model Evaluation
    •     SOC Gap Analysis
    •     SIEM Gap Analysis
    •     SIEM Optimization
    •     SOC Content Pack
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    • Tabletop Exercise
    • Simulated Cyber Attack Exercises
  • Managed Security
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      • Hybrid SOC
    • Managed Security Services
      • Managed Detection and Response
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      • Managed Penetration Testing
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