General

  • Target
    chernobyl mbr .exe
  • Size 3.2MB
  • Sample260928-py4alathmf
  • SHA256 79b15418ed5af280f8563206b5d449bb67b83f85420fa06912783b1cdde06576
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      chernobyl mbr .exe
    • Size 3.2MB
    • SHA256 79b15418ed5af280f8563206b5d449bb67b83f85420fa06912783b1cdde06576
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Modifies system executable filetype association

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

MITRE ATT&CK Enterprise v16

Tasks