Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-01-2025 01:32

General

  • Target

    2025-01-28_a401470eac65e49052158c5432a07a1f_cobalt-strike_ryuk.exe

  • Size

    2.2MB

  • MD5

    a401470eac65e49052158c5432a07a1f

  • SHA1

    50c1d6c5252880744a5882c6ca82af5490a80e3e

  • SHA256

    f7fb6eef17d2f1e68b034affcfd4334644a81c821db8ce55c25fa8e3f5a3f3c6

  • SHA512

    9c1cbfccc20f4b7c479f39261505051124c3e896b35cb6b4ac1f1b47bc47628767cd659e9f4f9cc8a7c1fd0242ad5f30437eb53b6adb10733a3e7ad3c51ef8c5

  • SSDEEP

    24576:HtMUOrqOMgOQ1wiy36RV+iXN+7c4umCMxIFM5UXQvhacZhRv1zgZln:NMUQOgwi7RVZXNoumhxIqU0h+ln

Malware Config

Extracted

Family

meduza

C2

62.210.116.3

Attributes
  • anti_dbg

    true

  • anti_vm

    true

  • build_name

    mertafan

  • extensions

    .txt; .doc; .xlsx

  • 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 2 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.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-01-28_a401470eac65e49052158c5432a07a1f_cobalt-strike_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-28_a401470eac65e49052158c5432a07a1f_cobalt-strike_ryuk.exe"
    1⤵
    • Checks computer location settings
    • Accesses Microsoft Outlook profiles
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • outlook_office_path
    • outlook_win_path
    PID:4572

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4572-0-0x0000000140000000-0x000000014013F000-memory.dmp

    Filesize

    1.2MB

  • memory/4572-9-0x0000000140000000-0x000000014013F000-memory.dmp

    Filesize

    1.2MB