Overview

overview

10

Static

static

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows10-2004-x64

7

Ransomware...KB.exe

windows11-21h2-x64

7

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows10-2004-x64

9

Ransomware...KB.exe

windows11-21h2-x64

9

Resubmissions

30/11/2025, 12:12

251130-pc6htsvpft10

30/11/2025, 12:00

251130-n6lvvahl7110

09/11/2025, 19:58

251109-ypxk5asqhm10

06/11/2025, 21:43

251106-1kxrfatrhp10

03/11/2025, 21:39

251103-1hxzesak9z10

04/10/2025, 20:19

251004-y355es1qy910

09/04/2025, 13:37

250409-qwzeas1rx9

31/03/2025, 05:19

250331-fz687stwdz

31/03/2025, 05:18

250331-fzse2swn13

31/03/2025, 05:18

250331-fzmvkawnz8

Analysis

  • max time kernel
    298s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20251016-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20251016-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/11/2025, 12:12

Sharing

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Report Analysis Logs

General

  • Target
    RansomwareSamples/Babik_04_01_2021_31KB.exe
  • Size 30KB
  • Sample251130-pc6htsvpft
  • SHA256 8203c2f00ecd3ae960cb3247a7d7bfb35e55c38939607c85dbdb5c92f0495fa9
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
credential_accessdefense_evasiondiscoveryexecutionbabukimpactransomwarespywarestealer

Malware Config

Extracted

Path

  • \Device\HarddiskVolume1\Boot\da-DK\How To Restore Your Files.txt

  • babuk

Ransom Note
  • ----------- [ Hello! ] -------------> ****BY BABUK LOCKER**** What happend? ---------------------------------------------- Your computers and servers are encrypted, backups are deleted from your network and copied. We use strong encryption algorithms, so you cannot decrypt your data. But you can restore everything by purchasing a special program from us - a universal decoder. This program will restore your entire network. Follow our instructions below and you will recover all your data. If you continue to ignore this for a long time, we will start reporting the hack to mainstream media and posting your data to the dark web. What guarantees? ---------------------------------------------- We value our reputation. If we do not do our work and liabilities, nobody will pay us. This is not in our interests. All our decryption software is perfectly tested and will decrypt your data. We will also provide support in case of problems. We guarantee to decrypt one file for free. Go to the site and contact us. How to contact us? ---------------------------------------------- Using TOR Browser ( https://www.torproject.org/download/ ): http://babukq4e2p4wu4iq.onion/login.php?id=8M60J4vCbbkKgM6QnA07E9qpkn0Qk7 !!! DANGER !!! DO NOT MODIFY or try to RECOVER any files yourself. We WILL NOT be able to RESTORE them. !!! DANGER !!
URLs

  • http://babukq4e2p4wu4iq.onion/login.php?id=8M60J4vCbbkKgM6QnA07E9qpkn0Qk7

Signatures

  • Babuk Locker

    RaaS first seen in 2021 initially called Vasa Locker.

    ransomwarebabuk
  • Babuk family
    babuk
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (2364) files with added filename extension

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

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

    credential_accessstealer
  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

    spywarestealer
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Interacts with shadow copies 3 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\RansomwareSamples\Babik_04_01_2021_31KB.exe
    "C:\Users\Admin\AppData\Local\Temp\RansomwareSamples\Babik_04_01_2021_31KB.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Enumerates connected drives
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3444
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5100
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:4336
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1180
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:4628
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3808
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
    1⤵
      PID:4280
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:4420

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          StartUnifiedTileModelCache.dat
          • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\StartUnifiedTileModelCache.dat
          • Size 22KB
          • SHA256 3ca19c82fb0407d5ee39845fa233ab87353267bd0552146f80297a52d8ee4f00
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          StartUnifiedTileModelCache.dat
          • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\StartUnifiedTileModelCache.dat
          • Size 25KB
          • SHA256 648ef8892f2b2ccb1c28a6d40e4d0d32cf4c84fab69c446d5a520c31369facaf
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          How To Restore Your Files.txt
          • Path \Device\HarddiskVolume1\Boot\da-DK\How To Restore Your Files.txt
          • Size 1KB
          • SHA256 db1c8cafdedfc4be8dd6b81aa086b998ae49ad929b8a260d4030c7b5ca373a45
          • MD5 SHA1 SHA512
          Submit Download