Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-09-2024 15:26

General

  • Target

    56f74f8c33cfa60be0f3b8936978a6d31c3c57eb3e4e00bd7a794da9b3ecd7b3.exe

  • Size

    514KB

  • MD5

    e16d9fea42a12e877198f687ee023e63

  • SHA1

    5e84f5034c4372b8674eb4099da75c398c904955

  • SHA256

    56f74f8c33cfa60be0f3b8936978a6d31c3c57eb3e4e00bd7a794da9b3ecd7b3

  • SHA512

    2c9894f9abf9c3e7d544b6112510a689119fc0f118f614d86d868c1238fe696484d43e0a0a638c1f2a0c4d8b1a21fe524ffe2df6e6e06e6d7c206b69f57c7322

  • SSDEEP

    3072:8vOXfbBI4++rye6iLfv7FizEPB5Oe4UKXqlc8Lm87wgZPzOmem0:nXzin6jwUKXSL/hLOH

Malware Config

Extracted

Path

C:\ProgramData\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.ws 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--- fqAM1Wjx6ZFKZezjt1CnsVfuNcsFUvsiwLgufIXADXkqyWAWww27zBekvcfCaTzh ---END ID---
URLs

http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/

https://contirecovery.ws

Signatures

  • Conti Ransomware

    Ransomware generally thought to be a successor to Ryuk.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Renames multiple (7308) files with added filename extension

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

  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

  • 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
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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\56f74f8c33cfa60be0f3b8936978a6d31c3c57eb3e4e00bd7a794da9b3ecd7b3.exe
    "C:\Users\Admin\AppData\Local\Temp\56f74f8c33cfa60be0f3b8936978a6d31c3c57eb3e4e00bd7a794da9b3ecd7b3.exe"
    1⤵
    • Drops startup file
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:624
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{E02B70BC-559A-427D-BE3F-C7909B8DFDDF}'" delete
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4456
      • C:\Windows\System32\wbem\WMIC.exe
        C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{E02B70BC-559A-427D-BE3F-C7909B8DFDDF}'" delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4868
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3260

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\readme.txt

    Filesize

    1KB

    MD5

    ac912958d8ddded9bb3117498e76ac41

    SHA1

    a818e44237b79ef828026c6530465a6ff6a17fd5

    SHA256

    da04404dcf44a4f0078819d3dfa9261e52a50d29ed379a75a6bd160e7bde02b2

    SHA512

    fb64251c4cf63f9df40b1738613fa13eddcc06e9d86246215fd38281d1b2e137308a26f9853f3f80edb4f5d01ccf9dc647bf7c7895527806b8cc705eb6e3ef0e