Resubmissions

29-10-2024 22:04

241029-1yx95a1aqg 10

25-07-2024 19:49

240725-yjp9vs1bmr 10

General

  • Target

    retun.exe

  • Size

    200.0MB

  • Sample

    241029-1yx95a1aqg

  • MD5

    57bfb36b08a68eacecc64d77211b69b9

  • SHA1

    db6ef4199dc49868b3bf713915057e6721c8b7e5

  • SHA256

    2f8c8adc872d77bf4cbc46bd3f197fe9a3f71f511b3bb9e8af96f83fd7f509e6

  • SHA512

    bcb3119f72bda2b9a247bb695154055ad74708eb444d2bd25400847fe8112da9b8210d0df94f71b4daec18776ca1948d8702f17f766234830d0a4dcf811f2f7a

  • SSDEEP

    196608:1W++z9hoy6EnWLL0kiR+dy/YXsK0hn6ksV5:1WXRWyuPMR+dyLhO5

Malware Config

Targets

    • Target

      retun.exe

    • Size

      200.0MB

    • MD5

      57bfb36b08a68eacecc64d77211b69b9

    • SHA1

      db6ef4199dc49868b3bf713915057e6721c8b7e5

    • SHA256

      2f8c8adc872d77bf4cbc46bd3f197fe9a3f71f511b3bb9e8af96f83fd7f509e6

    • SHA512

      bcb3119f72bda2b9a247bb695154055ad74708eb444d2bd25400847fe8112da9b8210d0df94f71b4daec18776ca1948d8702f17f766234830d0a4dcf811f2f7a

    • SSDEEP

      196608:1W++z9hoy6EnWLL0kiR+dy/YXsK0hn6ksV5:1WXRWyuPMR+dyLhO5

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Checks computer location settings

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

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Looks up external IP address via web service

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

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

    • Enumerates processes with tasklist

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks