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General

  • Target

    http://steeamcommunitii.com/activation=Tvc2Fh10mw1

  • Sample

    250121-bjg7xsymcv

Malware Config

Targets

    • Target

      http://steeamcommunitii.com/activation=Tvc2Fh10mw1

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • Writes to the Master Boot Record (MBR)

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

    • Detected potential entity reuse from brand STEAM.

MITRE ATT&CK Enterprise v15

Tasks