Overview

overview

10

Static

static

2138c8a34a...cf.exe

windows7_x64

10

2138c8a34a...cf.exe

windows10_x64

10

Analysis

  • max time kernel
    35s
  • max time network
    69s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    22-08-2021 09:24

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General

  • Target

    2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe

  • Size

    79KB

  • MD5

    f6282c938e0662cf851feee0146d79a4

  • SHA1

    9d0c6528565303e5b10a964a2783c77f25b9695b

  • SHA256

    2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf

  • SHA512

    b99be65ddc6154128992b510aa1b053b56dbad7f91f9102e42a06ada2f3c58f5ac6423483728648c20adce862c6f0e136913c6d0441a47391cedc76194c2936f

Score
10/10
babukransomware

Malware Config

Extracted

Path

C:\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/104617a28c7b21518d506b079ca9d5221551f89d5d54025a1ec71dd33aacd896/ 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/4c43fb6f271eda10ac65ec0dc918f7ec851455acb98c1fe29f3b2feffe53c286 * 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 algorythm and you can harm your files by using 3rd party decryption software.
URLs

http://wavbeudogz6byhnardd2lkp2jafims3j7tj6k6qnywchn2csngvtffqd.onion/blog/104617a28c7b21518d506b079ca9d5221551f89d5d54025a1ec71dd33aacd896/

http://wavbeudogz6byhnardd2lkp2jafims3j7tj6k6qnywchn2csngvtffqd.onion/

http://vq3zf757tzpwhs7bulnr43d2rfg5fkvvfkhee2zhhzievuxrbnarmgqd.onion/4c43fb6f271eda10ac65ec0dc918f7ec851455acb98c1fe29f3b2feffe53c286

Signatures

  • Babuk Locker

    RaaS first seen in 2021 initially called Vasa Locker.

    ransomwarebabuk
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies extensions of user files 26 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Enumerates connected drives 3 TTPs 24 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). Likely ransomware behaviour.

  • Interacts with shadow copies 2 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe
    "C:\Users\Admin\AppData\Local\Temp\2138c8a34a1eff40ba3fc81b6e3b7564c6b695b140e82f3fcf23b2ec2bf291cf.exe"
    1⤵
    • Modifies extensions of user files
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:804
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3560
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:3892
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1276
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1080
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2808
  • C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\How To Restore Your Files.txt
    1⤵
      PID:2844

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\Desktop\How To Restore Your Files.txt
      MD5

      655a099a144e6164ba891274ac9aa406

      SHA1

      66c4292b9f1b516ec0869adcd64efeb5c4bd1917

      SHA256

      cfad30c98f7fdd4c40a88994cb4d2f8499d67525ac92031d1f77595164b27b71

      SHA512

      3fc847a23a2fbc3a03607195451a22caf3cd867d4085796d8ddb4e6b490cd303524c22c75d9b9f204b17d62f089692fd8f11d9275a10e15da62ae3bcf2fedecf

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    • memory/1080-117-0x0000000000000000-mapping.dmp

      Download

    • memory/1276-116-0x0000000000000000-mapping.dmp

      Download

    • memory/3560-114-0x0000000000000000-mapping.dmp

      Download

    • memory/3892-115-0x0000000000000000-mapping.dmp

      Download