General

  • Target

    special_function.exe

  • Size

    4.1MB

  • Sample

    241116-heedss1jay

  • MD5

    5583ad2b12d90490626b14fb72471ae4

  • SHA1

    89200b1ea2cb8c22b97f93b335d861a7e022478a

  • SHA256

    7f923d21aabce586b418237b335c8f0fd2e82057bd7f3119804a075af0bd4acb

  • SHA512

    4c198116e8bf52f8aa8436e38a2d30604267260f9d74a2c2b6ecf9fdb40d3e0162a34894752ef0cc6b496300cd6e62149020340317cc949db8bf747b03f7255f

  • SSDEEP

    98304:MW2uRdZpGWnfsRnOyPnbK+4AWvxY24eY:gudBB+0vxLY

Malware Config

Extracted

Family

xworm

C2

45.141.27.91:7777

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

Targets

    • Target

      special_function.exe

    • Size

      4.1MB

    • MD5

      5583ad2b12d90490626b14fb72471ae4

    • SHA1

      89200b1ea2cb8c22b97f93b335d861a7e022478a

    • SHA256

      7f923d21aabce586b418237b335c8f0fd2e82057bd7f3119804a075af0bd4acb

    • SHA512

      4c198116e8bf52f8aa8436e38a2d30604267260f9d74a2c2b6ecf9fdb40d3e0162a34894752ef0cc6b496300cd6e62149020340317cc949db8bf747b03f7255f

    • SSDEEP

      98304:MW2uRdZpGWnfsRnOyPnbK+4AWvxY24eY:gudBB+0vxLY

    • 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.

    • Executes dropped EXE

    • 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