Analysis

  • max time kernel
    118s
  • max time network
    122s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    25-10-2021 19:38

General

  • Target

    603fbfe3d00baa8aa65288169af993b1a43cb6d02718204130922af513cc404b.exe

  • Size

    194KB

  • MD5

    38c68c11f6fff05be28c7f70f9e00255

  • SHA1

    f49dd6576e63ff72cab929d7008acaeb8a74be8e

  • SHA256

    603fbfe3d00baa8aa65288169af993b1a43cb6d02718204130922af513cc404b

  • SHA512

    6e141309ec23e740eeca34757db4eafa9373574ddfa222e1467c29bfc4cbfc42b7b7bba36294ad58e0adc7fdab0ad25818f2f01f8b4dcf5ff590821db31aacfd

Malware Config

Extracted

Path

C:\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.click 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--- JNlRq03C1g9yGm1yXd2i14woLYKTGeM9db2LnOB0IsaLl1A0FIZDONoyiWUUPRJT ---END ID---
URLs

http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/

https://contirecovery.click

Signatures

  • Conti Ransomware

    Ransomware generally thought to be a successor to Ryuk.

  • Modifies extensions of user files 7 IoCs

    Ransomware generally changes the extension on encrypted files.

  • 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 file in Program Files directory 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\603fbfe3d00baa8aa65288169af993b1a43cb6d02718204130922af513cc404b.exe
    "C:\Users\Admin\AppData\Local\Temp\603fbfe3d00baa8aa65288169af993b1a43cb6d02718204130922af513cc404b.exe"
    1⤵
    • Modifies extensions of user files
    • Drops startup file
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2828
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{19CDF45A-AB26-4CD3-A80A-DC59EDB6A247}'" delete
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2376
      • C:\Windows\System32\wbem\WMIC.exe
        C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{19CDF45A-AB26-4CD3-A80A-DC59EDB6A247}'" delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1052
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1404

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Replay Monitor

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Downloads

  • memory/1052-116-0x0000000000000000-mapping.dmp
  • memory/2376-115-0x0000000000000000-mapping.dmp