Analysis

  • max time kernel
    150s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    15-02-2022 19:51

General

  • Target

    f848c62dbc910ee32990161cc598f550707d26c524394be35c7bdb7a62626047.exe

  • Size

    191KB

  • MD5

    c8229ecc8b36da53095e489f228acc27

  • SHA1

    9febd22b7a953727ce1011055a8c15d1193ab7a3

  • SHA256

    f848c62dbc910ee32990161cc598f550707d26c524394be35c7bdb7a62626047

  • SHA512

    5caba57d5f9dd208a5f5e4e612009f16e2e365197f63aee5713ab76c0f5de48ca535c4dec3dceddf6f22b495aa2a2452c4eb08149e9d0a1704557d02da5e6f24

Score
10/10

Malware Config

Extracted

Path

C:\readme.txt

Family

conti

Ransom Note
All of your files are currently encrypted by CONTI strain. Backups were encrypted or deleted, same as Shadow Copies. As you know (if you don't - just "google it"), all of the data that has been encrypted by CONTI 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, but if you are still willing to try - try it on the data of the lowest value. To make sure that we REALLY CAN recover all of the encryptd data - we offer you to decrypt 2 random files of your choice completely free of charge. None of your internal documents or files were downloaded this time, and as soon as we receive the payment - your network will be completely recovered like nothing happened. Besides the fast and easy recovery process you will be provided with breach details or vulnerabilities that led your network to get compromised and some security tips on how to avoid it in future. The faster you reply - the easier and cheaper it will be. To receive information on the price of the recovery software 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://m232fdxbfmbrcehbrj5iayknxnggf6niqfj6x4iedrgtab4qupzjlaid.onion HTTPS VERSION : https://contirecovery.best ---BEGIN ID--- pPUnKg2arjexHCi0b6xUm3djAKFrW38CnwoPCirPeZWxAeMRnUXr4Fa7DUxoxbKR ---END ID---
URLs

http://m232fdxbfmbrcehbrj5iayknxnggf6niqfj6x4iedrgtab4qupzjlaid.onion

https://contirecovery.best

Signatures

  • Conti Ransomware

    Ransomware generally thought to be a successor to Ryuk.

  • Modifies extensions of user files 12 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Drops desktop.ini file(s) 26 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f848c62dbc910ee32990161cc598f550707d26c524394be35c7bdb7a62626047.exe
    "C:\Users\Admin\AppData\Local\Temp\f848c62dbc910ee32990161cc598f550707d26c524394be35c7bdb7a62626047.exe"
    1⤵
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1956
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{17C5A010-80A0-4F9A-836F-BFCB14B6316C}'" delete
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4160
      • C:\Windows\System32\wbem\WMIC.exe
        C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{17C5A010-80A0-4F9A-836F-BFCB14B6316C}'" delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4928
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{E9B5643F-8908-41A9-879A-BF3F65E24DF9}'" delete
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1332
      • C:\Windows\System32\wbem\WMIC.exe
        C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{E9B5643F-8908-41A9-879A-BF3F65E24DF9}'" delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2284
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4840
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
    1⤵
    • Drops file in Windows directory
    PID:888
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    PID:1936

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/888-130-0x000001E259790000-0x000001E2597A0000-memory.dmp

    Filesize

    64KB

  • memory/888-131-0x000001E259FE0000-0x000001E259FF0000-memory.dmp

    Filesize

    64KB

  • memory/888-132-0x000001E25C510000-0x000001E25C514000-memory.dmp

    Filesize

    16KB