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Rewterz Threat Alert – Lazarus APT Group – IOCs
March 25, 2022
Rewterz Threat Alert – Cobalt Strike Malware – Active IOCs
March 25, 2022

Rewterz Threat Alert – HermeticRansom Targeting Ukraine – Russian-Ukrainian Cyber Warfare

March 25, 2022

Severity

Medium

Analysis Summary

Trojan.Killdisk is a new disk-wiping malware recently discovered by security researchers. The wiper attacks are targeted towards Ukraine in support of the Russian invasion, and these signatures can also be seen in attacks in Lithuania. Targeted sectors are aviation, defense, IT services, and financial sector.

HermeticWiper (Trojan.Killdisk) is interestingly digitally signed by a certificate issued to Hermetica Digital Ltd (the origin of the name).

Upon execution, HermeticWiper will damage the MBR (Master Boot Record) of the victim’s system, which will render it inoperable. Organizations compromised using this wiper date back to November of 2021. A Microsoft SQL Server vulnerability was also used to attack organizations in Ukraine and along with the wiper, ransomware was also deployed against affected organizations.

Impact

  • Data Loss
  • File Encryption
  • Financial Loss

Indicators of Compromise

MD5

  • decc2726599edcae8d1d1d0ca99d83a6

SHA-256

  • 3c557727953a8f6b4788984464fb77741b821991acbf5e746aebdd02615b1767

SHA-1

  • 0d8cc992f279ec45e8b8dfd05a700ff1f0437f29

Remediation

  • Block all threat indicators at your respective controls.
  • Search for IOCs in your environment.
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    • Assess
      • Compromise Assessment
      • APT Assessment
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      • Incident Analysis
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    •     SIEM Gap Analysis
    •     SIEM Optimization
    •     SOC Content Pack
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    • 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
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      • Managed Threat Intelligence
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      • Managed Penetration Testing
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