Analysis

  • max time kernel
    94s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-11-2024 16:29

General

  • Target

    2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe

  • Size

    4.1MB

  • MD5

    23c48ef9af21ef0c23b973d91cc6a74c

  • SHA1

    9ded62e253c887fcd369e4454a8eab99c558ca01

  • SHA256

    122fc376c799e673542d418dc29d0fec04e8e4762f71a65f69338cbf5afb01d4

  • SHA512

    e7cead3f1977e41b39672e2e38b4b22dc2ddc5a314eb42aed98544d485e528cdc55165506b188cb7b3b79c1d3e46d3099261d2ed023792060375b4fcb3497372

  • SSDEEP

    24576:9Smpzi3xGi50W+Zdel5ubbFJePhI7dyPxbOePKV/if1+Oj/ypy8r4qkFGotaEpmy:qxGK0l3e3utIPW2i4XjuXYXDCiZ

Malware Config

Extracted

Family

meduza

C2

45.130.145.152

Attributes
  • anti_dbg

    true

  • anti_vm

    true

  • build_name

    Seo

  • 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 6 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3940
    • C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_ryuk.exe
      C:\Users\Admin\AppData\Local\Temp\2024-11-16_23c48ef9af21ef0c23b973d91cc6a74c_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:4408

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3940-0-0x00007FF66A700000-0x00007FF66A701000-memory.dmp

    Filesize

    4KB

  • memory/4408-5-0x0000000140000000-0x000000014013E000-memory.dmp

    Filesize

    1.2MB

  • memory/4408-4-0x0000000140000000-0x000000014013E000-memory.dmp

    Filesize

    1.2MB

  • memory/4408-6-0x0000000140000000-0x000000014013E000-memory.dmp

    Filesize

    1.2MB

  • memory/4408-7-0x0000000140000000-0x000000014013E000-memory.dmp

    Filesize

    1.2MB

  • memory/4408-14-0x0000000140000000-0x000000014013E000-memory.dmp

    Filesize

    1.2MB

  • memory/4408-15-0x0000000140000000-0x000000014013E000-memory.dmp

    Filesize

    1.2MB