Analysis

  • max time kernel
    104s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/03/2025, 15:51

General

  • Target

    2025-03-31_58276b228366e0cde9778a029cfec58a_destroyer_wannacry.exe

  • Size

    21KB

  • MD5

    58276b228366e0cde9778a029cfec58a

  • SHA1

    5377435ad3ec0740e90c2356d3c110260dbf3699

  • SHA256

    e6ab5307c0bf08c44533f227dca42cef289beac8be32519d7ad7e03e8242a299

  • SHA512

    653bd6cfbfc027821f163f2616d8627ed7d45d22b5334923df455906e19f8a2e845d8b67779427823304bb26741e3e7a82d6f1c7b1a54ca5b625989462a071c6

  • SSDEEP

    384:q3MLWHn3kIxPScBp40jGoO7tJ9r91CzYvex:un3kIPBpXjgb9r9ikex

Malware Config

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 1 IoCs
  • Chaos family
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 3 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Drops desktop.ini file(s) 34 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-03-31_58276b228366e0cde9778a029cfec58a_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-31_58276b228366e0cde9778a029cfec58a_destroyer_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Drops desktop.ini file(s)
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3828
    • C:\Windows\system32\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\666.txt
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:3220

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\Desktop\666.txt

    Filesize

    323B

    MD5

    a6ec740677b633a714e98a97a66d4257

    SHA1

    7ba542c7c28fa98a1d84bde254f15ebaee651b78

    SHA256

    8be96c982f21009ac3c1b1e96d7edbe1d462ea06667b6ffa10f40fab8888e8aa

    SHA512

    98f7878b971a386404511c6a4f830a9cbc06d3e652552a69c571133cf83666e6dd155c4f9ecd9ec48cfeb49b1b12cfd7bb99aaf250d3ae35b1500746b3b2e030

  • memory/3828-0-0x0000000000DA0000-0x0000000000DAC000-memory.dmp

    Filesize

    48KB

  • memory/3828-1-0x00007FFFB41B3000-0x00007FFFB41B5000-memory.dmp

    Filesize

    8KB

  • memory/3828-59-0x00007FFFB41B0000-0x00007FFFB4C71000-memory.dmp

    Filesize

    10.8MB

  • memory/3828-60-0x00007FFFB41B3000-0x00007FFFB41B5000-memory.dmp

    Filesize

    8KB

  • memory/3828-61-0x00007FFFB41B0000-0x00007FFFB4C71000-memory.dmp

    Filesize

    10.8MB