General

  • Target

    XClient2.exe

  • Size

    72KB

  • Sample

    240721-yhpxpstfnn

  • MD5

    40663a80e6470891d3c983b7143f460f

  • SHA1

    d41411214e04ea17eac12174abac3d746c01b59e

  • SHA256

    41ac04f717912442f57958f140f4e7da4f09a2866b01d7f6bae75f94fa4c96e6

  • SHA512

    069a3bd3f786ba22d3502ad4d4117f7abfe3e8ee6c4c35518b6398efdb8bcab00a0ba4d493d8d6670a4ba7185d727c631ee2349744ae127138801509a42f339d

  • SSDEEP

    1536:JMIahO8dQiGSmttjQR8YRZZbMgA/omS8W5XZF6KdSyuDbkOBjnBn:7OdQnthQRPZbMgA/fIZZdSyusOBVn

Malware Config

Extracted

Family

xworm

Version

3.1

C2

http://127.0.0.1:4040

Attributes
  • Install_directory

    %Temp%

  • install_file

    USB.exe

Targets

    • Target

      XClient2.exe

    • Size

      72KB

    • MD5

      40663a80e6470891d3c983b7143f460f

    • SHA1

      d41411214e04ea17eac12174abac3d746c01b59e

    • SHA256

      41ac04f717912442f57958f140f4e7da4f09a2866b01d7f6bae75f94fa4c96e6

    • SHA512

      069a3bd3f786ba22d3502ad4d4117f7abfe3e8ee6c4c35518b6398efdb8bcab00a0ba4d493d8d6670a4ba7185d727c631ee2349744ae127138801509a42f339d

    • SSDEEP

      1536:JMIahO8dQiGSmttjQR8YRZZbMgA/omS8W5XZF6KdSyuDbkOBjnBn:7OdQnthQRPZbMgA/fIZZdSyusOBVn

    • 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.

    • Drops startup file

    • 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