Analysis

  • max time kernel
    93s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-05-2024 07:42

General

  • Target

    4a5a1059ac4868847b1c770c08d166a1cefa68168af566c2280fbccd0773934e.exe

  • Size

    473KB

  • MD5

    646842512919c08c056bd8faff7824b3

  • SHA1

    62bc3bbaa209a0df9865cc1e937f18079276b183

  • SHA256

    4a5a1059ac4868847b1c770c08d166a1cefa68168af566c2280fbccd0773934e

  • SHA512

    969c845357eca26673a4911cfde8adec316cf7218a9a9c2c153c1fe543fcb9fe0a80ed5c3306b8086cb290bc198e4945d731678a48179c92cf3c713a7909779a

  • SSDEEP

    6144:ADRIM+SzQZIrIe58wcjn8pu0/+s3zR7NdoM2iHZ4s5E+uRX3UlQ59yMdOhHSsgPH:pdI58wu8IT+RJdvBKsHudUlsExSsg3Y4

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://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/ HTTPS VERSION : https://contirecovery.xyz/ 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--- UER3GkowzzbBdoDPcmyBX9VeFqJwjP3eaRdqiYnKkc9wCu2jcHrnl8Vstgl447Ve ---END ID---
URLs

http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/

https://contirecovery.xyz/

Signatures

  • Conti Ransomware

    Ransomware generally thought to be a successor to Ryuk.

  • Renames multiple (7351) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops desktop.ini file(s) 31 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 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\4a5a1059ac4868847b1c770c08d166a1cefa68168af566c2280fbccd0773934e.exe
    "C:\Users\Admin\AppData\Local\Temp\4a5a1059ac4868847b1c770c08d166a1cefa68168af566c2280fbccd0773934e.exe"
    1⤵
    • Drops startup file
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4040
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{34B42696-402E-40AC-A8D7-3AF4BD666A7E}'" delete
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1512
      • C:\Windows\System32\wbem\WMIC.exe
        C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{34B42696-402E-40AC-A8D7-3AF4BD666A7E}'" delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3260
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1488

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\readme.txt

    Filesize

    1KB

    MD5

    02aca66083f85518ca1ac4bb688e7b4f

    SHA1

    8b6dab3ceb858ce768bc4d584597605dae5963cc

    SHA256

    60b63e95a062a9ac3694683db5f6b72f60856073f66a402558152ed5b34d2dd8

    SHA512

    304e6827421e72c614e69006eafa7b8863446980351d4875fb733b6388aee8787b08b87afee194988dbadf0a2d620ac3db3836f70b9e1eb271c23fa0f354de39

  • memory/4040-6-0x0000000002110000-0x000000000214D000-memory.dmp

    Filesize

    244KB

  • memory/4040-18446-0x0000000002110000-0x000000000214D000-memory.dmp

    Filesize

    244KB

  • memory/4040-9-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

  • memory/4040-7-0x0000000000401000-0x0000000000429000-memory.dmp

    Filesize

    160KB

  • memory/4040-2-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

  • memory/4040-1-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

  • memory/4040-5-0x00000000004D0000-0x00000000004D1000-memory.dmp

    Filesize

    4KB

  • memory/4040-0-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

  • memory/4040-8-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

  • memory/4040-3-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

  • memory/4040-8435-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

  • memory/4040-3845-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

  • memory/4040-9948-0x0000000000401000-0x0000000000429000-memory.dmp

    Filesize

    160KB

  • memory/4040-9947-0x0000000002110000-0x000000000214D000-memory.dmp

    Filesize

    244KB

  • memory/4040-14762-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

  • memory/4040-18444-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

  • memory/4040-18445-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

  • memory/4040-18447-0x0000000000401000-0x0000000000429000-memory.dmp

    Filesize

    160KB

  • memory/4040-4-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB