Analysis

  • max time kernel
    117s
  • max time network
    124s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    16-12-2021 16:52

General

  • Target

    03597628e999d791f4cc442328024235db9a929467a62ef0a00c91a76161f0e1.bin.dll

  • Size

    190KB

  • MD5

    f61817daf163c6617b22418bc887b9d3

  • SHA1

    e78d49cd87c37659890603bee2acca888ab381fd

  • SHA256

    03597628e999d791f4cc442328024235db9a929467a62ef0a00c91a76161f0e1

  • SHA512

    3e0cd971b6d5d3721f710a7814b320596541bcb7f021f48353a0effc24282fa241c73ce5a76ef85ebffa686f1699ccab2e8c24ad20632461cc84e2befbd74366

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/ HTTPS VERSION : https://contirecovery.ws 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--- wSpHH7e2NMHQ5dF3CSF5k29fvPRrxASNCdHphh0cOIGmOYvJHhhhcCmIpcX9XbW9 ---END ID---
URLs

http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/

https://contirecovery.ws

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 startup file 1 IoCs
  • Drops desktop.ini file(s) 32 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • Modifies data under HKEY_USERS 4 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\03597628e999d791f4cc442328024235db9a929467a62ef0a00c91a76161f0e1.bin.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3052
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\03597628e999d791f4cc442328024235db9a929467a62ef0a00c91a76161f0e1.bin.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:2416
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -s BITS
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:2000
  • 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:3784
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k appmodel -s tiledatamodelsvc
    1⤵
    • Drops file in Windows directory
    PID:3684

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2416-115-0x0000000000000000-mapping.dmp
  • memory/3684-116-0x000001F0F3B00000-0x000001F0F3B10000-memory.dmp
    Filesize

    64KB

  • memory/3684-117-0x000001F0F3B50000-0x000001F0F3B60000-memory.dmp
    Filesize

    64KB

  • memory/3684-118-0x000001F0F4340000-0x000001F0F4341000-memory.dmp
    Filesize

    4KB

  • memory/3684-119-0x000001F0F68F0000-0x000001F0F68F1000-memory.dmp
    Filesize

    4KB