General

  • Target

    XClient.exe

  • Size

    41KB

  • Sample

    241119-pxw5wswcka

  • MD5

    db6c027e6b063181f9ed3bc3cb11c331

  • SHA1

    4aa00a4187098f342d4803fcaad8eea697ee0809

  • SHA256

    da84387864bbf2260524869ce8a0e3a4ecaa1944382f1f8cdc16b6d0e58a0d14

  • SHA512

    6a48d214931e334b0e9c077a134a6ef51325c8fc759504ecd825aeb46a7d2160f28ecb6ac1c231354ebb3a6c25ab64418712110d478545fd11933531bfcdea07

  • SSDEEP

    768:nG2ZOWZ42nxuT3XvgggCLJF5PG9pm+6vOwh+3EmzO:nG2bZ42n07XvvgcFI9A+6vOwA9K

Malware Config

Extracted

Family

xworm

Version

5.0

C2

welcome-soon.gl.at.ply.gg:12447

Mutex

90L0iLfiAde2P6nu

Attributes
  • Install_directory

    %AppData%

  • install_file

    $77MicrosoftDefender.exe

aes.plain

Targets

    • Target

      XClient.exe

    • Size

      41KB

    • MD5

      db6c027e6b063181f9ed3bc3cb11c331

    • SHA1

      4aa00a4187098f342d4803fcaad8eea697ee0809

    • SHA256

      da84387864bbf2260524869ce8a0e3a4ecaa1944382f1f8cdc16b6d0e58a0d14

    • SHA512

      6a48d214931e334b0e9c077a134a6ef51325c8fc759504ecd825aeb46a7d2160f28ecb6ac1c231354ebb3a6c25ab64418712110d478545fd11933531bfcdea07

    • SSDEEP

      768:nG2ZOWZ42nxuT3XvgggCLJF5PG9pm+6vOwh+3EmzO:nG2bZ42n07XvvgcFI9A+6vOwA9K

    • 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