Analysis

  • max time kernel
    115s
  • max time network
    123s
  • 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, 15:47

General

  • Target

    70338cda06c6a4eabb037d06f5a944af4c5d54330282681461b4a7c729a6f12c.exe

  • Size

    511KB

  • MD5

    add17a96054956ec615befc7cd34d153

  • SHA1

    b74bc91e22b2999417c0ac704c9727b91a36f470

  • SHA256

    70338cda06c6a4eabb037d06f5a944af4c5d54330282681461b4a7c729a6f12c

  • SHA512

    6c1976ad2301ef1e12b499c8ed20a29ed113e81c1b32d1e7542da743878b486a1e9aa6b7b41f287e8000013e795f8a3434d4c270f3f4d59bda95609a6c6caeca

  • SSDEEP

    3072:/Y2TIW6NmG0jQm78u+aXJzuDyyUmaP/E61VoMU9FLBD9PKigvPXNYzA9QK:/VTIt0GkQ2JziBUma0oVmJDhKkuQ

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.best 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--- WIzXR2lGvuQk29m1PY7u4rlctcqqD9r7P8cxcChaQuFbVn9c3SEhznrejtQj3jBf ---END ID---
URLs

http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/

https://contirecovery.best

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 (7696) 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 desktop.ini file(s) 31 IoCs
  • 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 64 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\70338cda06c6a4eabb037d06f5a944af4c5d54330282681461b4a7c729a6f12c.exe
    "C:\Users\Admin\AppData\Local\Temp\70338cda06c6a4eabb037d06f5a944af4c5d54330282681461b4a7c729a6f12c.exe"
    1⤵
    • Drops startup file
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3236
    • 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:1036
      • 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:912
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3960
  • 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=4400,i,3210801877307184477,8078594481454001567,262144 --variations-seed-version --mojo-platform-channel-handle=1040 /prefetch:8
    1⤵
      PID:4056

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\readme.txt

      Filesize

      1KB

      MD5

      8f6296784a2d2a437c579768503f8737

      SHA1

      937b7bab4c20d01d8c9d324c830a14f73cb534a8

      SHA256

      946ca299d775712a93ca6d5daf44b96c986385a584001bf40730eebe86df9071

      SHA512

      f798844b0b44ee8baeba06caf9ac994bc8ad454a9923894567f04154eeeaccd5a171262bf8d0f69356cbed40356f194bf0d7d069ab3c7ba6741642d1e0b0673d