General

  • Target

    killa.exe

  • Size

    90KB

  • Sample

    240521-q6gl8sgc5z

  • MD5

    b10a0f0b6e05e80663004dbc5b5c9ccb

  • SHA1

    3d2c39b8446ea808952461192796977c8da8d69c

  • SHA256

    86ca705a2d8b90684b0c4ab698e28a6661ec6248131face07d6e83b593aea931

  • SHA512

    0b09e3e4fcc9d22bda69eaa5d174d972a21c178c42d4d630ec34b137e0aed0c58fa1ecddbb7fd25b0d6276cecc5ca5434b9e23ef031121501d1467cf14e139a7

  • SSDEEP

    1536:WuQ4ZetkrGAPElv9LrxssKeIw0BK7PJ2rO6m/b1rZ7RAs8I/8gNPAAgbB1WN2qtP:potkrGPllrus2wIK9J/bpZ7RApIZNYAf

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:40656

147.185.221.16:40656

Attributes
  • Install_directory

    %Userprofile%

  • install_file

    WinDefenderClient.exe

Targets

    • Target

      killa.exe

    • Size

      90KB

    • MD5

      b10a0f0b6e05e80663004dbc5b5c9ccb

    • SHA1

      3d2c39b8446ea808952461192796977c8da8d69c

    • SHA256

      86ca705a2d8b90684b0c4ab698e28a6661ec6248131face07d6e83b593aea931

    • SHA512

      0b09e3e4fcc9d22bda69eaa5d174d972a21c178c42d4d630ec34b137e0aed0c58fa1ecddbb7fd25b0d6276cecc5ca5434b9e23ef031121501d1467cf14e139a7

    • SSDEEP

      1536:WuQ4ZetkrGAPElv9LrxssKeIw0BK7PJ2rO6m/b1rZ7RAs8I/8gNPAAgbB1WN2qtP:potkrGPllrus2wIK9J/bpZ7RApIZNYAf

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks