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General

  • Target

    Friendly Message.exe

  • Size

    7.1MB

  • Sample

    240610-yykb6ayhkp

  • MD5

    3d356b895a52c7afd6ee592111be89f8

  • SHA1

    43aea7690077675dad62b1f40de9a34ba15a9ecf

  • SHA256

    159470ab95dbca1fbb46b486d3a551c1dbde2e3ca3402c1aef69af6309871a11

  • SHA512

    a47f7e9b02d4dec50a0bfcdcc5622bdc290ded161941100963398d2b80fac9eab03291bba3cede744bfed23cd24bb442b18ed8c1f1abcadc9439408b4d9b4efd

  • SSDEEP

    196608:FpqNyKFwh7AqwAzWx+HYOieGwUo+OE/ZgTsc:i1FQAqCxgYOiemocc

Malware Config

Extracted

Family

xworm

C2

medical-m.gl.at.ply.gg:28857

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    conhost.exe

Targets

    • Target

      Friendly Message.exe

    • Size

      7.1MB

    • MD5

      3d356b895a52c7afd6ee592111be89f8

    • SHA1

      43aea7690077675dad62b1f40de9a34ba15a9ecf

    • SHA256

      159470ab95dbca1fbb46b486d3a551c1dbde2e3ca3402c1aef69af6309871a11

    • SHA512

      a47f7e9b02d4dec50a0bfcdcc5622bdc290ded161941100963398d2b80fac9eab03291bba3cede744bfed23cd24bb442b18ed8c1f1abcadc9439408b4d9b4efd

    • SSDEEP

      196608:FpqNyKFwh7AqwAzWx+HYOieGwUo+OE/ZgTsc:i1FQAqCxgYOiemocc

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • 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.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Uses the VBS compiler for execution

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks