General

  • Target

    Polysy_Launcher.exe

  • Size

    200.0MB

  • Sample

    241211-3ysqrasqgt

  • MD5

    1adfc887018848dd5f4617827d978de8

  • SHA1

    e0988dff57a4323164a9a8ab65f6cfc466c12b85

  • SHA256

    be61c1d0bf67dc6eab5099931f12ad2ab5a924b01273e656bf1982c159903e04

  • SHA512

    5028b871595e6002787e1f04b0b0525db23e4302149327c0b9ffab2c3d8273234057dc372dee1bb12a6aab5a2b7ab6ef25c41e45bdb80e4358d418c857f05203

  • SSDEEP

    768:1FbpgqnVBXVGP/IX6X/kQPwtdfzXqYcV69izh:TacBF9X6XciE5jy69iz

Malware Config

Extracted

Family

meduza

C2

193.3.19.151

Attributes
  • anti_dbg

    true

  • anti_vm

    true

  • build_name

    mrfree

  • extensions

    .txt

  • grabber_max_size

    4.194304e+06

  • port

    15666

  • self_destruct

    false

Targets

    • Target

      Polysy_Launcher.exe

    • Size

      200.0MB

    • MD5

      1adfc887018848dd5f4617827d978de8

    • SHA1

      e0988dff57a4323164a9a8ab65f6cfc466c12b85

    • SHA256

      be61c1d0bf67dc6eab5099931f12ad2ab5a924b01273e656bf1982c159903e04

    • SHA512

      5028b871595e6002787e1f04b0b0525db23e4302149327c0b9ffab2c3d8273234057dc372dee1bb12a6aab5a2b7ab6ef25c41e45bdb80e4358d418c857f05203

    • SSDEEP

      768:1FbpgqnVBXVGP/IX6X/kQPwtdfzXqYcV69izh:TacBF9X6XciE5jy69iz

    • Meduza

      Meduza is a crypto wallet and info stealer written in C++.

    • Meduza Stealer payload

    • Meduza family

    • 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.

    • 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.

    • Accesses Microsoft Outlook profiles

    • 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.

MITRE ATT&CK Enterprise v15

Tasks