Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-02-2024 05:40

General

  • Target

    912f6ba823937d9f1f3b0cef3f5c4986.exe

  • Size

    195KB

  • MD5

    912f6ba823937d9f1f3b0cef3f5c4986

  • SHA1

    42ab240af3bded9cabe5338ac812b81d39862726

  • SHA256

    fe1652f4b828c9f98ff4a37829f4a988ad3c1601fc0dff7f99fe941ae4e81864

  • SHA512

    1338386cb15ad88ee9505bfc71388bc46d70c7fb1d5ce1312dd2cbe156f99b6ef2b8c1ca3a7f9ab95d0670892a1e340a51df995adc60f617cd90c173e7ab83f2

  • SSDEEP

    3072:6a/EBc2jrORnQssIJZYKcgtHhGk528yJKY8/d7epmB98g89QP2EKObWk:7EBc2jMQsdJdBgHJ+/dB9rP2IR

Score
10/10

Malware Config

Extracted

Path

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

Family

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.xyz/ 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--- Tif628Qw8RPLQWBUdvKeIRrv9T1rYYGdtwoL7VRxcpMFw0k6B4Cw0Ycf59iDr84c ---END ID---
URLs

http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/

https://contirecovery.xyz/

Signatures

  • Conti Ransomware

    Ransomware generally thought to be a successor to Ryuk.

  • Renames multiple (138) files with added filename extension

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

  • Drops file in Program Files directory 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 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\912f6ba823937d9f1f3b0cef3f5c4986.exe
    "C:\Users\Admin\AppData\Local\Temp\912f6ba823937d9f1f3b0cef3f5c4986.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3924
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{A0597C75-77DA-4982-810F-B5F7F48FB86F}'" delete
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:980
      • C:\Windows\System32\wbem\WMIC.exe
        C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{A0597C75-77DA-4982-810F-B5F7F48FB86F}'" delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4980
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4580

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Program Files (x86)\readme.txt

    Filesize

    1KB

    MD5

    35c0e8aacd17e72c2b25418a0bcf8db4

    SHA1

    5696937d407e02ec0c54c4fb0c226ca829850c0e

    SHA256

    1bf3c7a175f42b83f4ee18b1f66a5657424f10bd1422204742ea75eff593a9d6

    SHA512

    24f9424537b0e1fcfc7012fd6c23d632874bc673c745ada672007e5c0d0caccd2c0e137da5d658ccd582a498b0bc777f45a23eae9c06a8c72eef8d4b061c2ada