General

  • Target

    Game Booster v3.4.exe

  • Size

    4.2MB

  • Sample

    230322-xv5m9acg31

  • MD5

    ab1d5473e2be34629aed5f33969cdcf6

  • SHA1

    b39d2a3aa0ffcd4ea8b8b15d4cb790133e71f48e

  • SHA256

    5e01060bd60c83bf2fa00c2f25e86fda090da20bde322a25620a47ad3e4d0328

  • SHA512

    66cfb2923146e66deef6bf6ff8121cd2522ec9c56fffa59f942fcf81c2ffc9c61581caa92b409680a733767540a7d926f4f6b8ec67805a77a13ca737f44393e3

  • SSDEEP

    98304:qh4QVVE8rR5Z+kL5n6XmiH4dfcdDh6DClPyB/cLOH/fDbB0:qmQ7EUZ+R4df9ClOc6HDbB0

Malware Config

Targets

    • Target

      Game Booster v3.4.exe

    • Size

      4.2MB

    • MD5

      ab1d5473e2be34629aed5f33969cdcf6

    • SHA1

      b39d2a3aa0ffcd4ea8b8b15d4cb790133e71f48e

    • SHA256

      5e01060bd60c83bf2fa00c2f25e86fda090da20bde322a25620a47ad3e4d0328

    • SHA512

      66cfb2923146e66deef6bf6ff8121cd2522ec9c56fffa59f942fcf81c2ffc9c61581caa92b409680a733767540a7d926f4f6b8ec67805a77a13ca737f44393e3

    • SSDEEP

      98304:qh4QVVE8rR5Z+kL5n6XmiH4dfcdDh6DClPyB/cLOH/fDbB0:qmQ7EUZ+R4df9ClOc6HDbB0

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Registers COM server for autorun

    • Checks installed software on the system

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

    • 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 Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Bootkit

1
T1067

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Tasks