Analysis

  • max time kernel
    129s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-02-2024 16:47

General

  • Target

    MrsMajor 3.0.7z

  • Size

    234KB

  • MD5

    fedb45ddbd72fc70a81c789763038d81

  • SHA1

    f1ed20c626d0a7ca2808ed768e7d7b319bc4c84a

  • SHA256

    eacd5ed86a8ddd368a1089c7b97b791258e3eeb89c76c6da829b58d469f654b2

  • SHA512

    813c0367f3aeceea9be02ffad4bfa8092ea44b428e68db8f3f33e45e4e5e53599d985fa79a708679b6957cbd04d9b9d67b288137fa71ac5a59e917b8792c8298

  • SSDEEP

    6144:HMMAgnxjSgdHCueEVIzAMAcqXvYEC86TFSQ:HagxjSg1xrIzAMAcuI5TFT

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c "C:\Users\Admin\AppData\Local\Temp\MrsMajor 3.0.7z"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3336
    • C:\Program Files\7-Zip\7zFM.exe
      "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\MrsMajor 3.0.7z"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:4196

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads