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Rewterz Threat Alert – Vovabol Ransomware – Active IOCs

April 7, 2022

Severity

High

Analysis Summary

Vovabol Ransomware is a fake or pretend ransomware which is actually an extortionist. The threat actor demands $50 or its rubles equivalent. The malware is Russian themed and targets Russian users. Contents of the ransom note: Data encryption/algorithm NEMEZIDA/ DO NOT DELETE ANYTHING FROM THE DESKTOP To decrypt, pay $50 or the equivalent in rubles to the payment system: QIWI (https://qiwi ru) to wallet +79670298024 or +79154862476 In the comments to the payment, indicate: 1. Your key number 1 – see the file INSTRUCTIONS.txt on the desktop 2. Your email (key number 2 will be sent to it for decryption) FOR DECRYPTION * On your desktop, run DECRYPT * Carefully enter the received key number 2 and press START * Decryption will take some time, do not close the decryption program, be sure to wait for the successful processing message * During processing, do not use the computer and do not turn off. If processing did not pass completely (for example, the computer turned off), write a letter to mnovazeml@online.ua / vovabol@inbox.lv

Impact

  • File Encryption

Indicators of Compromise

Filename

  • 10101010[.]exe

MD5

  • 2b99e5c85cd8b0e6decf30d6daee094e

SHA-256

  • e4defd8a187a513212cb19c9f2a800505395e66d9cd9eb3a96c291060224e7dd

SHA-1

  • c3e7652e16a2e03d96b0274b5520d19b96196a03

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
  • Transform
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    •     SOC Maturity Assessment
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    •     SOC Gap Analysis
    •     SIEM Gap Analysis
    •     SIEM Optimization
    •     SOC Content Pack
  • Train
    • Security Awareness and Training
    • Tabletop Exercise
    • Simulated Cyber Attack Exercises
  • Managed Security
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      • Remote SOC
      • Onsite SOC
      • Hybrid SOC
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      • Managed Detection and Response
      • Managed Endpoint Detection and Response
      • Managed Threat Intelligence
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      • Managed Penetration Testing
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