Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    20-01-2022 11:33

General

  • Target

    904e0855772f56721cc157641a26bb7963651e5a45c3bb90764328b17081abd5.bin.sample.dll

  • Size

    190KB

  • MD5

    641d7e44b87e88608443d6423937d983

  • SHA1

    7e9f57de4eaf2fa3535c1b4f0c5fa1f33b3dd2ac

  • SHA256

    904e0855772f56721cc157641a26bb7963651e5a45c3bb90764328b17081abd5

  • SHA512

    f0c40529be05c7631bd91d94232dbc9036780565f05863c3253e273f1b84156c4cede68f594d645c52f2f8478b6c3b36e312a9bf4f78c4a94ed65fed0b2d372b

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://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/ 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--- ybDIfd1mzTBPYo5dyj6JZxMmDtmafJ1OF4NJyOpQSiAjMHstTJGMe570USnFTRSM ---END ID---
URLs

http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/

Signatures

  • Conti Ransomware

    Ransomware generally thought to be a successor to Ryuk.

  • Modifies extensions of user files 5 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Drops desktop.ini file(s) 46 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\904e0855772f56721cc157641a26bb7963651e5a45c3bb90764328b17081abd5.bin.sample.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1624
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\904e0855772f56721cc157641a26bb7963651e5a45c3bb90764328b17081abd5.bin.sample.dll
      2⤵
      • Modifies extensions of user files
      • Drops desktop.ini file(s)
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      PID:836

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/836-56-0x0000000076641000-0x0000000076643000-memory.dmp

    Filesize

    8KB

  • memory/1624-55-0x000007FEFC401000-0x000007FEFC403000-memory.dmp

    Filesize

    8KB