Resubmissions

18/04/2026, 17:40

260418-v86rcsdx6q10

29/02/2024, 08:06

240229-jzh36aba8w10

Analysis

  • max time kernel
    146s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/02/2024, 08:06

General

  • Target
    ContiLocker.exe
  • Size 191KB
  • Sample240229-jzh36aba8w
  • SHA256 2fc6d7df9252b1e2c4eb3ad7d0d29c188d87548127c44cebc40db9abe8e5aa35
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Path
  • C:\Program Files (x86)\readme.txt

  • conti

Ransom Note
  • All of your files are currently encrypted by CONTI strain. As you know (if you don't - just "google it"), all of the data that has been encrypted by our software cannot be recovered by any means without contacting our team directly. If you try to use any additional recovery software - the files might be damaged, so if you are willing to try - try it on the data of the lowest value. To make sure that we REALLY CAN get your data back - we offer you to decrypt 2 random files completely free of charge. You can contact our team directly for further instructions through our website : TOR VERSION : (you should download and install TOR browser first https://torproject.org) http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/ HTTPS VERSION : https://contirecovery.best YOU SHOULD BE AWARE! Just in case, if you try to ignore us. We've downloaded a pack of your internal data and are ready to publish it on out news website if you do not respond. So it will be better for both sides if you contact us as soon as possible. ---BEGIN ID--- WIzXR2lGvuQk29m1PY7u4rlctcqqD9r7P8cxcChaQuFbVn9c3SEhznrejtQj3jBf ---END ID---
URLs
  • http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/

  • https://contirecovery.best

Signatures

  • Conti Ransomware

    Ransomware generally thought to be a successor to Ryuk.

  • Renames multiple (7322) files with added filename extension

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

  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops desktop.ini file(s) 31 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 4 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\ContiLocker.exe
    "C:\Users\Admin\AppData\Local\Temp\ContiLocker.exe"
    1⤵
    • Drops startup file
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3972
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{E1E556A4-64A2-49F2-9F43-131343388228}'" delete
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3708
      • C:\Windows\System32\wbem\WMIC.exe
        C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{E1E556A4-64A2-49F2-9F43-131343388228}'" delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3976
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4176

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        readme.txt

        • Path C:\Program Files (x86)\readme.txt
        • Size 1KB
        • SHA256 946ca299d775712a93ca6d5daf44b96c986385a584001bf40730eebe86df9071
        • MD5 SHA1 SHA512