Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    13-12-2024 01:34

General

  • Target

    2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe

  • Size

    3.1MB

  • MD5

    a7e925a92645f00a6e3a34e529b32f74

  • SHA1

    b1a02e07961d6340eeb0815614c2433eb4629458

  • SHA256

    21345abefc18f91271f25c32ce1c7c09b4b9234605edfbd9e35bf33f124de074

  • SHA512

    1a755a63fdcbb43ec77bb5fcef91a59ff842024121451807f3629e737d784dfa338b69fb17afa75fb42fec566ed5756a086ce538c01c8e11f2b872aae968482e

  • SSDEEP

    49152:u2TEq2yVp1b7iP9WakSbrUITcPH+hp9ZEDeo:u

Malware Config

Extracted

Family

meduza

C2

45.130.145.152

Attributes
  • anti_dbg

    true

  • anti_vm

    true

  • build_name

    Punish

  • extensions

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

  • grabber_max_size

    4.194304e+06

  • port

    15666

  • self_destruct

    true

Signatures

  • Meduza

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

  • Meduza Stealer payload 50 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.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2672
    • C:\Users\Admin\AppData\Local\Temp\2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe"
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:296
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C ping 1.1.1.1 -n 1 -w 3000 > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\2024-12-13_a7e925a92645f00a6e3a34e529b32f74_cobalt-strike_ryuk.exe"
        3⤵
        • System Network Configuration Discovery: Internet Connection Discovery
        • Suspicious use of WriteProcessMemory
        PID:1588
        • C:\Windows\system32\PING.EXE
          ping 1.1.1.1 -n 1 -w 3000
          4⤵
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:2144

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/296-0-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-4-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-10-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-19-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-20-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-18-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-17-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-15-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-14-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-25-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-24-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-22-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-21-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-13-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-8-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-7-0x000007FFFFFD3000-0x000007FFFFFD4000-memory.dmp

    Filesize

    4KB

  • memory/296-6-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-5-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-3-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-1-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-2-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-40-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-45-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-47-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-44-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-39-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-43-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-42-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-53-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-63-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-68-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-73-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-74-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-76-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-64-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-59-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-58-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-86-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-88-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-84-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-83-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-82-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-81-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-80-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-79-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-78-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-69-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-56-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-54-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-51-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-49-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-48-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-90-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB

  • memory/296-91-0x0000000140000000-0x00000001401FA000-memory.dmp

    Filesize

    2.0MB