Overview

overview

10

Static

static

3

2025-04-11...ex.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    104s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/04/2025, 07:42

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General

  • Target

    2025-04-11_80bf354ec21cd2e57ed63aa4e9881261_babuk_destroyer_elex.exe

  • Size

    86KB

  • MD5

    80bf354ec21cd2e57ed63aa4e9881261

  • SHA1

    d43fa6f94ec61fa87db7043ecdc970d35d5726dd

  • SHA256

    bc2f36b22ed4f31cda0ab5a87cc27e2c1a13dbf20c9f0f63947740a9d96e6eb1

  • SHA512

    6833c0294c0fed5a0b55cfeefea3f9140c89c2a65b7f9ef6e8482e7a503d3cc6c97e0aabd5303f37d736b43e0790f74030bc7e1f0a61706589b8ac1d42e562c0

  • SSDEEP

    1536:jvHJ5hiBMAMnL+by+PGuMsrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2es4z:jvHJ/iBMAqeyXBsrQLOJgY8Zp8LHD4Xo

Score
10/10
babukdefense_evasiondiscoveryexecutionimpactransomware

Malware Config

Extracted

Path

C:\PerfLogs\How To Restore Your Files.txt

Ransom Note
############## [ babuk ransomware greetings you ] ############## Introduction ---------------------------------------------- Congratulations! If you see this note, your company've been randomly chosen for security audit and your company haven't passed it. Unfortunately your servers are encrypted, backups are encrtypted too or deleted. Our enctyption algorythms are strong and it's impossible to decrypt your stuff without our help. Only one method to restore all your network and systems is - to buy our universal decryption software. Follow simple steps that discribed down below and your data will be saved. In case you ignore this situation, the consequences could me much serious, than you can imagine. Guarantees ---------------------------------------------- The hack and system encryption wasn't compromised by your competitors or any other 3rd party, this is just and only our initiative and only thing we interested is profit. Accurding the previous sentence We are very much value of 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 guarantee full support and help through the all decryption process. As the proof of our abilities and honesty, we can decrypt few small files for free, check the link provided and ask any questions. Data leakage ---------------------------------------------- We have copied some quantity of data from your servers. Check those proofs and estimate the seriousness of consequences which can occur in case you ignore us: http://wavbeudogz6byhnardd2lkp2jafims3j7tj6k6qnywchn2csngvtffqd.onion/blog/da83db34f2e0c077f7b064e6556f127c0a91d7ae21f3855f0e7279ce14d5f406/ This link is private and only you can see it. Use tor browser to open link. Ignoring the interaction with us brings you the publishing your data in our public blog http://wavbeudogz6byhnardd2lkp2jafims3j7tj6k6qnywchn2csngvtffqd.onion/ Contact ---------------------------------------------- 1) Download tor browser: https://www.torproject.org/download/ 2) Open it 3) Follow this link in tor browser: http://vq3zf757tzpwhs7bulnr43d2rfg5fkvvfkhee2zhhzievuxrbnarmgqd.onion/3fbf8f220dae00bb6bb8539b9c6c86c4bf5c58ccf651542e3363dd131239edd6 * 6 simple steps do minimize harm from ransomware. ----------------------------------------------------------------------------------------------------------------- Thousands of companies around the world are struggling on ransomware these days, and the most of companies are making the same mistakes again and again. Let’s figure out how to minimize harm and do not be a dumb and pathetic donkey which will make fun for journalists and so on.. 1. If you see small fella malicious .exe file never load it to virustotal.com or any other virus researching website. Otherwise the info about the hack is not a secret anymore. The fact that your company is under ransomware attack is already known by filthy predators data security agents who will post in their pity twitters the fresh known news “OMG ANOTHER RANSOMWARE NOW IT’S “Your company name LLC!!!!! We are all gonna die aaaaaa halp” 2. No any public announcements about the hack or data leakage. And do not applicate to law enforcement. If you commit this actions, more serious consequences can occur and you pay much more than a ransom amount. Law structures like GDPR in this case can oblige you to pay huge fine. 3. As soon as you see your network compromised, follow the link inside any note and follow instructions. 4. Calm your employees. Explain them that this is a drill. And you test your network security systems. 5. If you decide to hire the data recovery company, obligate them to do not inform anyone and any third party about details of the attack. We strongly do not recommend to cooperate with data recovery company, because they do absolutely nothing that you can do by yourself and take money for it. all communications with hackers could be conducted by your it department indipendently without any extra payments. 6. Do not try to decrypt your data via 3rd party software. Most of ransomware use strong encryption algorthm and you can harm your files by using 3rd party decryption software.
URLs

http://wavbeudogz6byhnardd2lkp2jafims3j7tj6k6qnywchn2csngvtffqd.onion/blog/da83db34f2e0c077f7b064e6556f127c0a91d7ae21f3855f0e7279ce14d5f406/

http://wavbeudogz6byhnardd2lkp2jafims3j7tj6k6qnywchn2csngvtffqd.onion/

http://vq3zf757tzpwhs7bulnr43d2rfg5fkvvfkhee2zhhzievuxrbnarmgqd.onion/3fbf8f220dae00bb6bb8539b9c6c86c4bf5c58ccf651542e3363dd131239edd6

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 (177) 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.

  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • 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
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 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\2025-04-11_80bf354ec21cd2e57ed63aa4e9881261_babuk_destroyer_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-04-11_80bf354ec21cd2e57ed63aa4e9881261_babuk_destroyer_elex.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4268
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1676
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:3424
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2428
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:5928
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3076

Network

MITRE ATT&CK Enterprise v16

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Downloads

  • C:\PerfLogs\How To Restore Your Files.txt
    Filesize

    4KB

    MD5

    165cb7536738d30a7ab5d8740f0d5c82

    SHA1

    e7c713f922758e9d5c23ea6ffdcd467e14cd558f

    SHA256

    b2868664ac8e06a5c33b650d24342f6094d0452c481b41bcdbf39ebde572f3b2

    SHA512

    ec800e9e28dec8ddce9ddba03a90795cef22947860eb896ad5fbf24215737c38228fc207adc97270584874f0ce66e5c1fffea51fc2393c7fe56b52bf536467ce

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