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Rewterz Threat Alert – Bitter APT Group – Active IOCs

Severity

High

Analysis Summary

APT-17 group aka BITTER APT group has been recently active and targeting sectors in South Asia for information theft and espionage. This group has a history of targeting Energy, Engineering, Government in South Asia. Spear phishing emails have been the main strike force to target their victims and they’ve been doing it for years now. Many BITTER victims have been exploited through relatively popular Microsoft Office exploit, in order to download and execute a RAT binary from a website. Although the attack vector of this sample remains unknown of yet, but this is an indication of their presence again in the South Asian region

Impact

  • Information Theft and Espionage

Indicators of Compromise

File Name

  • 1609010242134-Letter_toISI_13-09-2021[.]doc

MD5

  • be9bd8ed8a4c052be5cedb0266f50c0d

SHA-256

  • 3e2b72c3769b7e2ddc57326e0fbad1e182a18bd20a081361b1ad98e5cf4da0d1

SHA-1

  • 88758b75990f566f5c099fc23a6c9ade1ce90bd9

URL

  • hxxps[:]//olmajhnservice[.]com/nt[.]php/?dt=%computername%-EX-1&ct=1

Remediation

  • Block all threat indicators all your respective controls.
  • Search for IOCs in your environment