General

  • Target

    VM rat.exe

  • Size

    56KB

  • Sample

    231016-ffn9aabe7z

  • MD5

    4bb517637614df4307945dc499dff946

  • SHA1

    2f37e94ea9ab675a0f0bbaad836021afb26936be

  • SHA256

    297610c47358f4bc5d1ab96ddec7e6dafc8c6cb82784a1a085ab87d7e32ff3c4

  • SHA512

    a5e55001e9f2d00263890db8963b7af628744db651da03533fc2d2b1d4c2b0364ab3809c1c127f24c0c4548155be3bb27cfcbfc0a61392526c29f8d957ee6f42

  • SSDEEP

    1536:/mHyZ4yXOOaq+b1LHrb6y2Y/Er6jOznkJkq:/1p+cyhHrb6spOjNq

Malware Config

Extracted

Family

xworm

Version

3.1

C2

ANTILOL2113-61842.portmap.host:61842

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Targets

    • Target

      VM rat.exe

    • Size

      56KB

    • MD5

      4bb517637614df4307945dc499dff946

    • SHA1

      2f37e94ea9ab675a0f0bbaad836021afb26936be

    • SHA256

      297610c47358f4bc5d1ab96ddec7e6dafc8c6cb82784a1a085ab87d7e32ff3c4

    • SHA512

      a5e55001e9f2d00263890db8963b7af628744db651da03533fc2d2b1d4c2b0364ab3809c1c127f24c0c4548155be3bb27cfcbfc0a61392526c29f8d957ee6f42

    • SSDEEP

      1536:/mHyZ4yXOOaq+b1LHrb6y2Y/Er6jOznkJkq:/1p+cyhHrb6spOjNq

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • 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

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks