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Analysis

  • max time kernel
    134s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/05/2024, 07:44

General

  • Target

    a562e681906cbb239de7c405a9a32a850e4c0fa1fde875ba2eb2b71babba9f23.exe

  • Size

    829KB

  • MD5

    0b0d76744384d534ebfb2f8d13a682a8

  • SHA1

    0461b92274ba9bc94c2da70221de42a49f341c59

  • SHA256

    a562e681906cbb239de7c405a9a32a850e4c0fa1fde875ba2eb2b71babba9f23

  • SHA512

    5d0c1fbf16571391615b3d42874c85e0a44342af17f75a6bf748fe1d9ec470d894f7a55d0f4bc3f3f18d184686300718f9bf8fc302f1431531308ac2b7ae44a7

  • SSDEEP

    24576:M3HugtHvQzVOvrDkuMX4RmUJUlpk0cK1+l0XBk0OI9NE:qHugtHoWDkuE4RmUJa5cpOXi0VNE

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://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.

  • Renames multiple (7595) 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
  • 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
  • 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\a562e681906cbb239de7c405a9a32a850e4c0fa1fde875ba2eb2b71babba9f23.exe
    "C:\Users\Admin\AppData\Local\Temp\a562e681906cbb239de7c405a9a32a850e4c0fa1fde875ba2eb2b71babba9f23.exe"
    1⤵
    • Drops startup file
    • 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:3024
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{1392B848-B8E6-436A-9AD6-6F0F57C01B2F}'" delete
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2904
      • C:\Windows\System32\wbem\WMIC.exe
        C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{1392B848-B8E6-436A-9AD6-6F0F57C01B2F}'" delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1956
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4800
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4672,i,15142778360084620907,1763097090506261076,262144 --variations-seed-version --mojo-platform-channel-handle=4376 /prefetch:8
    1⤵
      PID:2548

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\readme.txt

      Filesize

      1KB

      MD5

      04a372cdd23f8bc91474d53be5d5b0bf

      SHA1

      1eb3b106975d8a53f16715bd930cdec461b8dfde

      SHA256

      ab27c0b6f29f6a547fd3b50eeeed06fb505a561635ca33a110d1a529ee64800b

      SHA512

      1dc9de3fb04a3ea1051451a56514eef45655cd4dfba56bdde524a81394f442d67ab6493b08400bd931ac51a61d19f7c8882b83ff762fd472de74b51576ac75a7

    • memory/3024-3-0x0000000000400000-0x00000000004C5000-memory.dmp

      Filesize

      788KB

    • memory/3024-2-0x0000000000400000-0x00000000004C5000-memory.dmp

      Filesize

      788KB

    • memory/3024-9-0x0000000000680000-0x0000000000683000-memory.dmp

      Filesize

      12KB

    • memory/3024-8-0x0000000000400000-0x00000000004C5000-memory.dmp

      Filesize

      788KB

    • memory/3024-7-0x0000000000400000-0x00000000004C5000-memory.dmp

      Filesize

      788KB

    • memory/3024-6-0x0000000000401000-0x000000000044E000-memory.dmp

      Filesize

      308KB

    • memory/3024-5-0x0000000000400000-0x00000000004C5000-memory.dmp

      Filesize

      788KB

    • memory/3024-4-0x0000000000400000-0x00000000004C5000-memory.dmp

      Filesize

      788KB

    • memory/3024-10-0x0000000000400000-0x00000000004C5000-memory.dmp

      Filesize

      788KB

    • memory/3024-0-0x0000000000400000-0x00000000004C5000-memory.dmp

      Filesize

      788KB

    • memory/3024-12-0x0000000002910000-0x0000000002940000-memory.dmp

      Filesize

      192KB

    • memory/3024-15-0x0000000002940000-0x000000000296F000-memory.dmp

      Filesize

      188KB

    • memory/3024-35-0x0000000000400000-0x00000000004C5000-memory.dmp

      Filesize

      788KB

    • memory/3024-1-0x0000000000630000-0x000000000066F000-memory.dmp

      Filesize

      252KB

    • memory/3024-6093-0x0000000000630000-0x000000000066F000-memory.dmp

      Filesize

      252KB

    • memory/3024-6933-0x0000000000401000-0x000000000044E000-memory.dmp

      Filesize

      308KB