Resubmissions

27-01-2024 19:37

240127-yb9zasafd8 10

27-01-2024 19:36

240127-ybp9wsafb7 10

01-05-2021 01:07

210501-shjstql5m2 10

Analysis

  • max time kernel
    86s
  • max time network
    124s
  • platform
    windows11-21h2_x64
  • resource
    win11-20231215-en
  • resource tags

    arch:x64arch:x86image:win11-20231215-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    27-01-2024 19:36

General

  • Target

    516664139b0ddd044397a56482d7308d87c213c320a3151ccb9738e8f932654b.exe

  • Size

    56KB

  • MD5

    84c1567969b86089cc33dccf41562bcd

  • SHA1

    53f2133cb25186e9fa6d4ea3b0e41eee5aba5ef2

  • SHA256

    516664139b0ddd044397a56482d7308d87c213c320a3151ccb9738e8f932654b

  • SHA512

    72a411cacd503b6fadb15dc90f1f9beb79ff79c620df76da381e5c780c53e11258aae72db2848c241ec55af403d67d62340e429e86c23bbf8a71287738de7eaa

  • SSDEEP

    768:AiN4q1eksgR4SiI+rxQ3rjFrXRRWxXyw/Afy81XweyetnR9Wsf5AyT9G3kZ:r4HHerjZX7pLken5nWXWi

Score
10/10

Malware Config

Extracted

Path

C:\README.9b45ae0c.TXT

Family

darkside

Ransom Note
----------- [ Welcome to DarkSide ] -------------> What happend? ---------------------------------------------- Your computers and servers are encrypted, backups are deleted. We use strong encryption algorithms, so you cannot decrypt your data. But you can restore everything by purchasing a special program from us - universal decryptor. This program will restore all your network. Follow our instructions below and you will recover all your data. Data leak ---------------------------------------------- First of all we have uploaded more then 500GB data. The data is preloaded and will be automatically published if you do not pay. After publication, your data will be available for at least 6 months on our tor cdn servers. We are ready: - To provide you the evidence of stolen data - To delete all the stolen data. What guarantees? ---------------------------------------------- We value our reputation. If we do not do our work and liabilities, nobody will pay us. This is not in our interests. All our decryption software is perfectly tested and will decrypt your data. We will also provide support in case of problems. We guarantee to decrypt one file for free. Go to the site and contact us. How to get access on website? ---------------------------------------------- Using a TOR browser: 1) Download and install TOR browser from this site: https://torproject.org/ 2) Open our website: http://dark24vx6fsmdrtbzdzjv6ckz4yqyued4uz455oqpctko7m6vbrzibad.onion/XES2TUV3A9QL89IS7QX91V7TYSF13ASPGB2TASQ68R9Z6QYH69OVY833QSRSFU4I When you open our website, put the following data in the input form: Key: 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 !!! DANGER !!! DO NOT MODIFY or try to RECOVER any files yourself. We WILL NOT be able to RESTORE them. !!! DANGER !!!
URLs

http://dark24vx6fsmdrtbzdzjv6ckz4yqyued4uz455oqpctko7m6vbrzibad.onion/XES2TUV3A9QL89IS7QX91V7TYSF13ASPGB2TASQ68R9Z6QYH69OVY833QSRSFU4I

Signatures

  • DarkSide

    Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.

  • Renames multiple (161) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 14 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Modifies Control Panel 2 IoCs
  • Modifies data under HKEY_USERS 33 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 32 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\516664139b0ddd044397a56482d7308d87c213c320a3151ccb9738e8f932654b.exe
    "C:\Users\Admin\AppData\Local\Temp\516664139b0ddd044397a56482d7308d87c213c320a3151ccb9738e8f932654b.exe"
    1⤵
      PID:3836
    • C:\Users\Admin\AppData\Local\Temp\516664139b0ddd044397a56482d7308d87c213c320a3151ccb9738e8f932654b.exe
      "C:\Users\Admin\AppData\Local\Temp\516664139b0ddd044397a56482d7308d87c213c320a3151ccb9738e8f932654b.exe"
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:4280
      • C:\Users\Admin\AppData\Local\Temp\516664139b0ddd044397a56482d7308d87c213c320a3151ccb9738e8f932654b.exe
        "C:\Users\Admin\AppData\Local\Temp\516664139b0ddd044397a56482d7308d87c213c320a3151ccb9738e8f932654b.exe"
        2⤵
        • Drops file in System32 directory
        • Sets desktop wallpaper using registry
        • Modifies Control Panel
        • Modifies data under HKEY_USERS
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2892
        • C:\Users\Admin\AppData\Local\Temp\516664139b0ddd044397a56482d7308d87c213c320a3151ccb9738e8f932654b.exe
          C:\Users\Admin\AppData\Local\Temp\516664139b0ddd044397a56482d7308d87c213c320a3151ccb9738e8f932654b.exe -work worker0 job0-2892
          3⤵
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          PID:3384
        • C:\Users\Admin\AppData\Local\Temp\516664139b0ddd044397a56482d7308d87c213c320a3151ccb9738e8f932654b.exe
          C:\Users\Admin\AppData\Local\Temp\516664139b0ddd044397a56482d7308d87c213c320a3151ccb9738e8f932654b.exe -work worker1 job1-2892
          3⤵
          • Enumerates connected drives
          PID:4884
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3892

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    1
    T1012

    Peripheral Device Discovery

    1
    T1120

    System Information Discovery

    1
    T1082

    Impact

    Defacement

    1
    T1491

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\README.9b45ae0c.TXT
      Filesize

      2KB

      MD5

      cc9673216d53012c400856b86968c4a2

      SHA1

      80945bfdc6f2b30fd7b47e92ae762ab4ad792659

      SHA256

      5dfc11166e6b0e978aa5b95aaf2a51733033379b7e7980f5fa1d42b6333cf9e0

      SHA512

      f556026b31927923f385325adb493934e45750f401bf4787a0f0602f8309f520c967da72b9924f1872895718a5376eb8c433084496f5903670ad1e1d47cc4266