Analysis

  • max time kernel
    142s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-09-2024 17:01

General

  • Target

    75684493a91c2b71fc7446d4a949eac03d26e7fc68ed9a19e3b3374fe4806dfb.exe

  • Size

    514KB

  • MD5

    3d8f8da9897e81121c83d0d17c560452

  • SHA1

    9829e8264216726f69e731394c08354e74a3b1f8

  • SHA256

    75684493a91c2b71fc7446d4a949eac03d26e7fc68ed9a19e3b3374fe4806dfb

  • SHA512

    de066843392b0fb410269142732885bb0e5f7cba8b78023d126d9ef14433451a8baa96b90091b9819d57a9e4cffd9ac44d733af46a4f70f5a0cc476f20293132

  • SSDEEP

    3072:Qy3XfbBI4++rye6iLf2zKUAOe4UKXqlc8Lm87wgZPyzOmem0Oa9G8Y3:FXzin6raUKXSL/hIOH/

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.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--- lWL5aqUDwBJQsqHmM6OkU1yOTGOiNHcCdTAyuj6A1xKUIz98qMCGpifNoPeYSXBA ---END ID---
URLs

http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/

https://contirecovery.click

Signatures

  • Conti Ransomware

    Ransomware generally thought to be a successor to Ryuk.

  • Renames multiple (52) files with added filename extension

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

  • Drops file in Program Files directory 52 IoCs
  • Program crash 1 IoCs
  • 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\75684493a91c2b71fc7446d4a949eac03d26e7fc68ed9a19e3b3374fe4806dfb.exe
    "C:\Users\Admin\AppData\Local\Temp\75684493a91c2b71fc7446d4a949eac03d26e7fc68ed9a19e3b3374fe4806dfb.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3048
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{CA4F2488-C812-4D6A-99DF-8A006EE3F21F}'" delete
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3336
      • C:\Windows\System32\wbem\WMIC.exe
        C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{CA4F2488-C812-4D6A-99DF-8A006EE3F21F}'" delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2444
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3048 -s 2032
      2⤵
      • Program crash
      PID:4544
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1140
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3048 -ip 3048
    1⤵
      PID:2972
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4120,i,1729213506309163284,12809566808978835441,262144 --variations-seed-version --mojo-platform-channel-handle=4440 /prefetch:8
      1⤵
        PID:712

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\readme.txt

        Filesize

        1KB

        MD5

        306b84b6dfba111b3e824d86804998f1

        SHA1

        7c1cb91fc2b13ca9b6e96407e12e9811a245eab1

        SHA256

        3d1d151274bffd401a292c2d6a9c165a757d60e9910e0a04b13ab2feb2655854

        SHA512

        a0313e4a392aeeb17271d007eea708d19e598525f9a78a6c2aa1fb4485ca7b54686c4c0f87b41606729f1d42ee4419f5e25e56aaeddb887fd5f7e57ed200ea0b