Analysis

  • max time kernel
    142s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    24-09-2021 10:27

General

  • Target

    74ebfcd116fdd39217935d11ae62e48a0c44dfab822edea62ac7f611aca969dd.dll

  • Size

    190KB

  • MD5

    33e977a44164db82bfef0c35c436f1f4

  • SHA1

    36a855d68aaf368c543707714afca78217815cbb

  • SHA256

    74ebfcd116fdd39217935d11ae62e48a0c44dfab822edea62ac7f611aca969dd

  • SHA512

    9ba400ecb65b8166fab1bc9199115845ee62cd5e30e1f3d5661ddbd62d4e0da91232c548dbb1ae9ee1ed0d296e5eb5a36f19776c7cb6715e2376e1e096a4fdc8

Score
10/10

Malware Config

Extracted

Path

C:\readme.txt

Family

conti

Ransom Note
All of your files are currently encrypted by CONTI ransomware. If you try to use any additional recovery software - the files might be damaged or lost. To make sure that we REALLY CAN recover data - we offer you to decrypt samples. You can contact us 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 your 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 ASAP ---BEGIN ID--- 1oCoJXb9aUiCGzFzjVs55rTrO2ucfQqV0GFhlPOS6ka81opOFBGKUQG5ZT0nLKpt ---END ID---
URLs

http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/

https://contirecovery.click

Signatures

  • Conti Ransomware

    Ransomware generally thought to be a successor to Ryuk.

  • Modifies extensions of user files 8 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Drops startup file 1 IoCs
  • Drops desktop.ini file(s) 32 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\74ebfcd116fdd39217935d11ae62e48a0c44dfab822edea62ac7f611aca969dd.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1764
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\74ebfcd116fdd39217935d11ae62e48a0c44dfab822edea62ac7f611aca969dd.dll
      2⤵
      • Modifies extensions of user files
      • Drops startup file
      • Drops desktop.ini file(s)
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      PID:2064
  • C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
    "C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
    1⤵
    • Drops file in Windows directory
    • Suspicious use of SetWindowsHookEx
    PID:4000
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k appmodel -s tiledatamodelsvc
    1⤵
    • Drops file in Windows directory
    PID:400

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/400-119-0x0000021C85640000-0x0000021C85650000-memory.dmp
    Filesize

    64KB

  • memory/400-118-0x0000021C85600000-0x0000021C85610000-memory.dmp
    Filesize

    64KB

  • memory/2064-117-0x0000000000000000-mapping.dmp