General

  • Target

    a8bf7d1f42ce4fe13c76e01befe367fa.bin

  • Size

    115KB

  • Sample

    241119-b27wasybpc

  • MD5

    36d9a46bbc8febb1ffd7d26d4e4df3a0

  • SHA1

    604fdc9f5956ab44dcf75762ccd55ad587a1a34b

  • SHA256

    fe285fb32d562e5603a6f9ae29924e3cc989b0b7c4437b173f0fcc809e1ae14e

  • SHA512

    8e4c4063b509a3ef332e933991dea72a43ed8d913414a40e201d4e307991aad6722c11220d324a9a982087e9aeda52a8abb7f6c53fef7133b4c4c05e6da492d2

  • SSDEEP

    3072:RGsW0krcEdGlX3BhUggC/EYXmMHNloek1:ssmrcEUlXnUggWEYXHtlM1

Malware Config

Extracted

Family

xworm

C2

185.84.161.66:5000

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

Targets

    • Target

      310c6e4649169990ced7e39f97fade780c725e8ecac3c7a6fe4a8e3d1b874bc8.exe

    • Size

      337KB

    • MD5

      a8bf7d1f42ce4fe13c76e01befe367fa

    • SHA1

      add32173cf45061d651b75f8b7ab33f86fdfbee7

    • SHA256

      310c6e4649169990ced7e39f97fade780c725e8ecac3c7a6fe4a8e3d1b874bc8

    • SHA512

      eba707226d114c4405b25b627ee38ba5b2c24cf353fdafd1d78dd90c0fed5de67a2c8c0846609ad7d554306191836667f00dd896d12215fd769c6f36f0f58e2d

    • SSDEEP

      3072:rXjgxzi3Z80WaXjTa4X+oFM3bUiS75l/NTugUJV21KFpwqEBOrNoq98wSpvbUP:rzgxAZ82a4XrFXSlQqrR98XU

    • 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

    • 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