Analysis

  • max time kernel
    117s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-11-2024 16:00

General

  • Target

    2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe

  • Size

    4.1MB

  • MD5

    dd0b9382bc7d77840b168800bc8cb812

  • SHA1

    d5b635efbf79662929b311572e41d7ea612749cc

  • SHA256

    93626f2a12a4ab1fbe7e284af0a3368c4041e58428f18429acc64d3f09067a29

  • SHA512

    d59b6f1496eade71a929c054523fa4815b5786226e0f1a62a6c0855ce5f2d2759ade49f1c00f657474c87a0d0a8a01fbc49644a766dde3556ccc9994152679de

  • SSDEEP

    49152:qxGK0l3e3uIR/ubXjQI9WOizBV4gxvQwnZ:qxGK09yuyZ

Malware Config

Extracted

Family

meduza

C2

45.130.145.152

Attributes
  • anti_dbg

    true

  • anti_vm

    true

  • build_name

    Work

  • extensions

    .txt;.doc;.docx;.pdf;.xls;.xlsx;.log;.db;.sqlite

  • grabber_max_size

    4.194304e+06

  • port

    15666

  • self_destruct

    false

Signatures

  • Meduza

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

  • Meduza Stealer payload 9 IoCs
  • Meduza family
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 5 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2140
    • C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
      C:\Users\Admin\AppData\Local\Temp\2024-11-16_dd0b9382bc7d77840b168800bc8cb812_ryuk.exe
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2600

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2600-2-0x0000000140000000-0x000000014013E000-memory.dmp

    Filesize

    1.2MB

  • memory/2600-4-0x0000000140000000-0x000000014013E000-memory.dmp

    Filesize

    1.2MB

  • memory/2600-3-0x0000000140000000-0x000000014013E000-memory.dmp

    Filesize

    1.2MB

  • memory/2600-10-0x0000000140000000-0x000000014013E000-memory.dmp

    Filesize

    1.2MB

  • memory/2600-9-0x000007FFFFFD3000-0x000007FFFFFD4000-memory.dmp

    Filesize

    4KB

  • memory/2600-8-0x0000000140000000-0x000000014013E000-memory.dmp

    Filesize

    1.2MB

  • memory/2600-12-0x0000000140000000-0x000000014013E000-memory.dmp

    Filesize

    1.2MB

  • memory/2600-7-0x0000000140000000-0x000000014013E000-memory.dmp

    Filesize

    1.2MB

  • memory/2600-13-0x0000000140000000-0x000000014013E000-memory.dmp

    Filesize

    1.2MB

  • memory/2600-6-0x0000000140000000-0x000000014013E000-memory.dmp

    Filesize

    1.2MB

  • memory/2600-5-0x0000000140000000-0x000000014013E000-memory.dmp

    Filesize

    1.2MB

  • memory/2600-27-0x0000000140000000-0x000000014013E000-memory.dmp

    Filesize

    1.2MB

  • memory/2600-28-0x0000000140000000-0x000000014013E000-memory.dmp

    Filesize

    1.2MB