Analysis

  • max time kernel
    119s
  • 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
    08-09-2024 15:29

General

  • Target

    ba1f830702f0444eefb6cebfa052af5e6c2c6cfb6c2052cbbbe62ea0be05b9da.exe

  • Size

    490KB

  • MD5

    5c543db6d893af1e320bec4787490e70

  • SHA1

    17b911525e0dc7c7c188dcfa8c376ad729b27a59

  • SHA256

    ba1f830702f0444eefb6cebfa052af5e6c2c6cfb6c2052cbbbe62ea0be05b9da

  • SHA512

    ff81bac8728b6bc6a4b5787bbbc2cb16f39a2f092e4fa9b09bae01671a5eb6c4dd2f0bb5dfc59f7b893181cedd1b816bf866f4f823e05ee3073f6f1eb1d6cffc

  • SSDEEP

    3072:D1ywyQ5Q6Bro3zJHfzypOH+xzVXpVHkK4jzeTCxaBgeU:MwyI5o3zJWPzTBOzeOahU

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://contirec7nchr45rx6ympez5rjldibnqzh7lsa56lvjvaeywhvoj3wad.onion/CRYw7aW6XKQVmbX2DmsLsHyLJJifiT4XLWmSv3Eo5V4pwDkcy6JhL2Y6T2pWXY5g 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--- CRYw7aW6XKQVmbX2DmsLsHyLJJifiT4XLWmSv3Eo5V4pwDkcy6JhL2Y6T2pWXY5g ---END ID---
URLs

http://contirec7nchr45rx6ympez5rjldibnqzh7lsa56lvjvaeywhvoj3wad.onion/CRYw7aW6XKQVmbX2DmsLsHyLJJifiT4XLWmSv3Eo5V4pwDkcy6JhL2Y6T2pWXY5g

Signatures

  • Conti Ransomware

    Ransomware generally thought to be a successor to Ryuk.

  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Program Files directory 47 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\ba1f830702f0444eefb6cebfa052af5e6c2c6cfb6c2052cbbbe62ea0be05b9da.exe
    "C:\Users\Admin\AppData\Local\Temp\ba1f830702f0444eefb6cebfa052af5e6c2c6cfb6c2052cbbbe62ea0be05b9da.exe"
    1⤵
    • 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:3012
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{760999F1-55EB-47DC-A1E2-9E60D81C5DB3}'" delete
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2600
      • C:\Windows\System32\wbem\WMIC.exe
        C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{760999F1-55EB-47DC-A1E2-9E60D81C5DB3}'" delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3488
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3012 -s 2036
      2⤵
      • Program crash
      PID:3572
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1948
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3012 -ip 3012
    1⤵
      PID:4852

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\readme.txt

      Filesize

      1KB

      MD5

      cd5bd2556f45ff81cdd6bb80c603254f

      SHA1

      6619f302809bb04d9b587bd6868a50485b6eb98b

      SHA256

      5587545c8e5bf66f3c4b45bfd127a1f5487d93038233d86ffab2a4542cce66d7

      SHA512

      14a972981d08cacef6aab37c766272f3ca24a3628046f7a18bc685264a7ec55d875f3b5494ebd49a2f50b8c14d1d230cc60003fac5e35fd13b5a6eb60a8ec050