General

  • Target

    XWorm V5.2.zip

  • Size

    94.9MB

  • Sample

    240802-3dgsrazajb

  • MD5

    ae4285fdfaf01e9533b954f7460a1654

  • SHA1

    7a04495442db3e801c1d9fa3491e3ba04f76073c

  • SHA256

    3e9a0998c2f1af74e4055ac67035f3db0212901ed273278dfcea9015f4deaa5b

  • SHA512

    888547bbaf720fccf00dc1f7ade83b4b5608efc67b5d1184e8e5859fd5fbd263fd9ccc60369592b17f4cf05ee529355bf34f9a0ee67e1a88e9139bf9fb3bafaa

  • SSDEEP

    1572864:cXjrCTvb2gXxrCTvbEcU8IrNhMXLe2KOJQ0/4lsb+LHU8IrNhMXLe2KMZQ0/4H+k:cn9gldEeNSjJJ/4X/eNSjZJ/4bT9G4

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    XClient.exe

  • pastebin_url

    https://pastebin.com/raw/H3wFXmEi

Extracted

Family

xworm

Version

5.0

C2

127.0.0.1:7000

Mutex

JYj1EIwWwj45bGVr

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

aes.plain

Targets

    • Target

      XWorm V5.2.zip

    • Size

      94.9MB

    • MD5

      ae4285fdfaf01e9533b954f7460a1654

    • SHA1

      7a04495442db3e801c1d9fa3491e3ba04f76073c

    • SHA256

      3e9a0998c2f1af74e4055ac67035f3db0212901ed273278dfcea9015f4deaa5b

    • SHA512

      888547bbaf720fccf00dc1f7ade83b4b5608efc67b5d1184e8e5859fd5fbd263fd9ccc60369592b17f4cf05ee529355bf34f9a0ee67e1a88e9139bf9fb3bafaa

    • SSDEEP

      1572864:cXjrCTvb2gXxrCTvbEcU8IrNhMXLe2KOJQ0/4lsb+LHU8IrNhMXLe2KMZQ0/4H+k:cn9gldEeNSjJJ/4X/eNSjZJ/4bT9G4

    • 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.

    • Download via BitsAdmin

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks