General

  • Target

    WizClient.exe

  • Size

    71KB

  • Sample

    241120-cxkewaykhx

  • MD5

    2e2fe18d037638e14c70fe14e28b5b3d

  • SHA1

    d3e8b9e4f2ada971da27c234aceb8272553bc0e0

  • SHA256

    22c6f07b96116766f7dea615493b245568b97ebff62f5a23726e0cc97849b551

  • SHA512

    81f1df51aef521fc812504f471d1055bd609cfef3ca8e17cab68a924aa62b759d34b1718fe17d661626d7a9b02a3d835004a6199db09dccff7dc4463dcec737a

  • SSDEEP

    1536:O9+yL5h7i4Wy/6efcbcM6hVufvMbzNUxXTeW63xmOXIwbmzI:0E+8AjVufUbzNXpmO9buI

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:1234

Attributes
  • Install_directory

    %Userprofile%

  • install_file

    System32.exe

Targets

    • Target

      WizClient.exe

    • Size

      71KB

    • MD5

      2e2fe18d037638e14c70fe14e28b5b3d

    • SHA1

      d3e8b9e4f2ada971da27c234aceb8272553bc0e0

    • SHA256

      22c6f07b96116766f7dea615493b245568b97ebff62f5a23726e0cc97849b551

    • SHA512

      81f1df51aef521fc812504f471d1055bd609cfef3ca8e17cab68a924aa62b759d34b1718fe17d661626d7a9b02a3d835004a6199db09dccff7dc4463dcec737a

    • SSDEEP

      1536:O9+yL5h7i4Wy/6efcbcM6hVufvMbzNUxXTeW63xmOXIwbmzI:0E+8AjVufUbzNXpmO9buI

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • 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.

    • 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.

MITRE ATT&CK Enterprise v15

Tasks