General

  • Target

    XClient.exe

  • Size

    67KB

  • Sample

    240608-vrkgssdf7t

  • MD5

    3c8c4499a7cb6cbe5feb53e696fba86a

  • SHA1

    27695d91e590f0f0d737f6e104a44d5772dbd7f9

  • SHA256

    1b42c3fbf4f4a0bb2e53eb821e8bbcc4c4fbf257f9de481d9be2af96cee8918c

  • SHA512

    406f7bfb71627abd16c0591edeb7619261a0f2f43ab77233773771354c56e262522b4c213e22e9c8a6884170950bcec3329f1dc2e4bdc2ae3ed4cc02cefc9ec7

  • SSDEEP

    1536:5kZOq4imIgifamb2OmPVn0bayLrv5st0uukY8o6OzMbvJgOHGJeSNt+/:5k54ti1kn0b/vv5sti8UzMbBgOmJeSNk

Malware Config

Extracted

Family

xworm

C2

medical-m.gl.at.ply.gg:28857

Attributes
  • install_file

    USB.exe

Targets

    • Target

      XClient.exe

    • Size

      67KB

    • MD5

      3c8c4499a7cb6cbe5feb53e696fba86a

    • SHA1

      27695d91e590f0f0d737f6e104a44d5772dbd7f9

    • SHA256

      1b42c3fbf4f4a0bb2e53eb821e8bbcc4c4fbf257f9de481d9be2af96cee8918c

    • SHA512

      406f7bfb71627abd16c0591edeb7619261a0f2f43ab77233773771354c56e262522b4c213e22e9c8a6884170950bcec3329f1dc2e4bdc2ae3ed4cc02cefc9ec7

    • SSDEEP

      1536:5kZOq4imIgifamb2OmPVn0bayLrv5st0uukY8o6OzMbvJgOHGJeSNt+/:5k54ti1kn0b/vv5sti8UzMbBgOmJeSNk

    • 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#.

    • Command and Scripting Interpreter: PowerShell

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

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • Looks up external IP address via web service

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

MITRE ATT&CK Enterprise v15

Tasks