Overview

overview

10

Static

static

babuk_v4.exe

windows7_x64

10

babuk_v4.exe

windows10_x64

10

Analysis

  • max time kernel
    24s
  • max time network
    103s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    25-01-2021 20:45

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General

  • Target

    babuk_v4.exe

  • Size

    30KB

  • MD5

    9478050023c7f8668df4fc39b0ddd79c

  • SHA1

    7925725cfb04d796f497e5142cba62860fbf87a9

  • SHA256

    3dda3ee9164d6815a18a2c23651a53c35d52e3a5ad375001ec824cf532c202e6

  • SHA512

    74bbf45112de1bf0d51ab0295118035a7e2c2028dd9b03bb8e222b9ccf6e077014c6b5d211b9d3ebe6434a41d883bcae14a0a3e969550ef094b30b73a38514e9

Score
10/10
ransomware

Malware Config

Extracted

Path

C:\Boot\bg-BG\How To Restore Your Files.txt

Ransom Note
############## [ babyk ransomware ] ############## * 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 without us. 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. * What information compromised? ---------------------------------------------- We copied many data from your internal network, here are some proofs (private link): http://gtmx56k4hutn3ikv.onion/?h2giV0RRxo38Z2pWhBTs For additional confirmations, please chat with us/ In cases of ignoring us, the information will be released to the public in blog http://gtmx56k4hutn3ikv.onion/ * How to contact us? ---------------------------------------------- 1) Download for browser: https://www.torproject.org/download/ 2) Open it 3) Follow this link in tor browser: http://babukq4e2p4wu4iq.onion/login.php?id=MNn0Flxa2JVxrT2gAiMfYdmAzyvUGi
URLs

http://gtmx56k4hutn3ikv.onion/?h2giV0RRxo38Z2pWhBTs

http://gtmx56k4hutn3ikv.onion/

http://babukq4e2p4wu4iq.onion/login.php?id=MNn0Flxa2JVxrT2gAiMfYdmAzyvUGi

Signatures

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies extensions of user files 12 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Drops startup file 1 IoCs
  • 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.

    ransomware
  • Interacts with shadow copies 2 TTPs 2 IoCs

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

    ransomware
  • Modifies Control Panel 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 280 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\babuk_v4.exe
    "C:\Users\Admin\AppData\Local\Temp\babuk_v4.exe"
    1⤵
    • Modifies extensions of user files
    • Drops startup file
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:4804
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4252
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:4316
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1164
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1596
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2172
  • C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
    "C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
    1⤵
    • Modifies Control Panel
    • Suspicious use of SetWindowsHookEx
    PID:1412

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1164-6-0x0000000000000000-mapping.dmp

    Download

  • memory/1596-7-0x0000000000000000-mapping.dmp

    Download

  • memory/4252-4-0x0000000000000000-mapping.dmp

    Download

  • memory/4316-5-0x0000000000000000-mapping.dmp

    Download

  • memory/4804-3-0x0000000002E70000-0x0000000002E71000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4804-2-0x0000000002670000-0x0000000002671000-memory.dmp

    Filesize

    4KB

    Download