General

  • Target

    Xworm.exe

  • Size

    828KB

  • Sample

    250123-q7bglstkan

  • MD5

    f2dba5b93fa78fe0357cae18d68bc13f

  • SHA1

    686e5e1ae65116c4d22315b15992163ad4d34f7c

  • SHA256

    0d8cc0a75238c05e1b072683ee43d7e0bf827dde7a652df1467333a2b1f6a570

  • SHA512

    cc9714c48fc9c36f98ec2230e96efd5016c254059cf23ea7ccf318e3e44337559e6f5f48d5b9367a10c5b87bd05df6345c58c64eb728769f649b2411f4dc3970

  • SSDEEP

    12288:pMSApJVYG5lDLyjsb0eOzkv4R7QnvUUilQ35+6G75V9rR0uvsj:pnsJ39LyjbJkQFMhmC+6GD9Fl0

Malware Config

Extracted

Family

xred

C2

xred.mooo.com

Attributes
  • email

    [email protected]

  • payload_url

    http://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download

    https://www.dropbox.com/s/n1w4p8gc6jzo0sg/SUpdate.ini?dl=1

    http://xred.site50.net/syn/SUpdate.ini

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVzUyaHFYVkQxeFk&export=download

    https://www.dropbox.com/s/zhp1b06imehwylq/Synaptics.rar?dl=1

    http://xred.site50.net/syn/Synaptics.rar

    https://docs.google.com/uc?id=0BxsMXGfPIZfSTmlVYkxhSDg5TzQ&export=download

    https://www.dropbox.com/s/fzj752whr3ontsm/SSLLibrary.dll?dl=1

    http://xred.site50.net/syn/SSLLibrary.dll

Extracted

Family

xworm

C2

simply-exotic.gl.at.ply.gg:27183

Attributes
  • Install_directory

    %Temp%

  • install_file

    Windows.exe

Targets

    • Target

      Xworm.exe

    • Size

      828KB

    • MD5

      f2dba5b93fa78fe0357cae18d68bc13f

    • SHA1

      686e5e1ae65116c4d22315b15992163ad4d34f7c

    • SHA256

      0d8cc0a75238c05e1b072683ee43d7e0bf827dde7a652df1467333a2b1f6a570

    • SHA512

      cc9714c48fc9c36f98ec2230e96efd5016c254059cf23ea7ccf318e3e44337559e6f5f48d5b9367a10c5b87bd05df6345c58c64eb728769f649b2411f4dc3970

    • SSDEEP

      12288:pMSApJVYG5lDLyjsb0eOzkv4R7QnvUUilQ35+6G75V9rR0uvsj:pnsJ39LyjbJkQFMhmC+6GD9Fl0

    • Detect Xworm Payload

    • Xred

      Xred is backdoor written in Delphi.

    • Xred family

    • 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

    • Loads dropped DLL

    • 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