Analysis

  • max time kernel
    152s
  • max time network
    140s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    27-01-2022 15:51

General

  • Target

    5ace33358a8b11ae52050d02d2d6705f04bd47a27c6c6e28ef65028bbfaf5da9.exe

  • Size

    624KB

  • MD5

    7e18dd4a4b84f2f93eff4790f16e8e8b

  • SHA1

    3113dbbeb536000ac8175ccb6438355af41ab2eb

  • SHA256

    5ace33358a8b11ae52050d02d2d6705f04bd47a27c6c6e28ef65028bbfaf5da9

  • SHA512

    3edfa60480ec1e0a6b5ce01d99cf0156fe544a77944ccd87acf95dcd0667cdfe4a2b99e9988cee0e597de03aa96d8098ae3f324fe63ca37db688522e5ec87fca

Score
10/10

Malware Config

Extracted

Path

C:\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/MAYeHZzawPjL51jqGnH1euFenWdJSCSx4LjdiNz46bQ2ZPugz83x52n5vqW0O76L 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--- MAYeHZzawPjL51jqGnH1euFenWdJSCSx4LjdiNz46bQ2ZPugz83x52n5vqW0O76L ---END ID---
URLs

http://contirec7nchr45rx6ympez5rjldibnqzh7lsa56lvjvaeywhvoj3wad.onion/MAYeHZzawPjL51jqGnH1euFenWdJSCSx4LjdiNz46bQ2ZPugz83x52n5vqW0O76L

Signatures

  • Conti Ransomware

    Ransomware generally thought to be a successor to Ryuk.

  • Dave packer 1 IoCs

    Detects executable using a packer named 'Dave' by the community, based on a string at the end.

  • Modifies extensions of user files 3 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Drops desktop.ini file(s) 28 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Modifies registry class 18 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5ace33358a8b11ae52050d02d2d6705f04bd47a27c6c6e28ef65028bbfaf5da9.exe
    "C:\Users\Admin\AppData\Local\Temp\5ace33358a8b11ae52050d02d2d6705f04bd47a27c6c6e28ef65028bbfaf5da9.exe"
    1⤵
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3140
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{0B662981-1382-4EE1-B62A-610BFEE02635}'" delete
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:528
      • C:\Windows\System32\wbem\WMIC.exe
        C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{0B662981-1382-4EE1-B62A-610BFEE02635}'" delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3572
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2320

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/3140-121-0x0000000000730000-0x000000000075E000-memory.dmp

    Filesize

    184KB