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General

  • Target

    2025-02-28_f3e4feed797b47a2d54a863284411a40_ryuk

  • Size

    20.1MB

  • Sample

    250228-kw9mdawxhw

  • MD5

    f3e4feed797b47a2d54a863284411a40

  • SHA1

    639c79925bac37e790cb80185147288af1be4700

  • SHA256

    d1d042fd8cce93a4f58024622f9584ff87e7042efe36ff8b628b4ab361bf718b

  • SHA512

    43c7753ae6eb680acd70a74db4771ee0467c9f40f66632b0d131c25f5f0f3cd6958826f8883647d03272b1a58bd25a075d4a6e86a88e083c060cb79cb8d13e2a

  • SSDEEP

    196608:uatpgF2oM7Vk96Cy8xEqn0SweKG8yvMGynsOT/k:vtpgF2oM7Vk96Cy8xEqn0MlhvQnsOL

Malware Config

Targets

    • Target

      2025-02-28_f3e4feed797b47a2d54a863284411a40_ryuk

    • Size

      20.1MB

    • MD5

      f3e4feed797b47a2d54a863284411a40

    • SHA1

      639c79925bac37e790cb80185147288af1be4700

    • SHA256

      d1d042fd8cce93a4f58024622f9584ff87e7042efe36ff8b628b4ab361bf718b

    • SHA512

      43c7753ae6eb680acd70a74db4771ee0467c9f40f66632b0d131c25f5f0f3cd6958826f8883647d03272b1a58bd25a075d4a6e86a88e083c060cb79cb8d13e2a

    • SSDEEP

      196608:uatpgF2oM7Vk96Cy8xEqn0SweKG8yvMGynsOT/k:vtpgF2oM7Vk96Cy8xEqn0MlhvQnsOL

    • FatalRat

      FatalRat is a modular infostealer family written in C++ first appearing in June 2021.

    • Fatalrat family

    • Gh0st RAT payload

    • Gh0strat

      Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

    • Gh0strat family

    • Fatal Rat payload

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Event Triggered Execution: Image File Execution Options Injection

    • 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

    • Reads user/profile data of web browsers

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

    • 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.

    • Checks system information in the registry

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

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks