Overview

overview

10

Static

static

3

3f044ba34b...dc.exe

windows7-x64

10

3f044ba34b...dc.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    120s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    20-03-2024 10:41

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General

  • Target

    3f044ba34bdf3c049e1f2468c91339ffc71d61fea913a43f876b8ba05211d0dc.exe

  • Size

    343KB

  • MD5

    a1885ec99ae99bd9a97c8bc299cd29c3

  • SHA1

    58b312cbae08a732aaa0b8b13677fe420357d64c

  • SHA256

    3f044ba34bdf3c049e1f2468c91339ffc71d61fea913a43f876b8ba05211d0dc

  • SHA512

    ee0d70850f4a12ea2f6a1f0e1f3ff57ca010ca562cf6c3a0e093dd9b541d8a6329f322e212c97ad62177966666f65404713c0da1b88c95661c54a3e7d7c0b0c1

  • SSDEEP

    3072:Hn078lpk25rohgDsMQGqKc7vVwZ2rgGgsSdzKrcDi8Ks7M/ubACeLuwrDY7mndz6:Hn076pwlR/dwUqXdurwiBfubs57P7Vs

Score
10/10
targetcompanyevasionransomware

Malware Config

Extracted

Path

C:\HOW TO BACK FILES.txt

Family

targetcompany

Ransom Note
Hello Your files are encrypted and can not be used We have downloaded your confidential data and are ready to publish it on our blog To return your files in work condition you need decryption tool Follow the instructions to decrypt all your data Do not try to change or restore files yourself, this will break them If you want, on our site you can decrypt one file for free. Free test decryption allowed only for not valuable file with size less than 3MB How to get decryption tool: 1) Download and install TOR browser by this link: https://www.torproject.org/download/ 2) If TOR blocked in your country and you can't access to the link then use any VPN software 3) Run TOR browser and open the site: wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion/mallox/privateSignin 4) Copy your private ID in the input field. Your Private key: 8238324455310E999E078752 5) You will see payment information and we can make free test decryption here 6)After payment, you will receive a tool for decrypting files, and we will delete the data that was taken from you Our blog of leaked companies: wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion If you are unable to contact us through the site, then you can email us: [email protected] Waiting for a response via mail can be several days. Do not use it if you have not tried contacting through the site.�
URLs

http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion/mallox/privateSignin

http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion

Signatures

  • TargetCompany,Mallox

    TargetCompany (aka Mallox) is a ransomware which encrypts files using a combination of ChaCha20, AES-128, and Curve25519, first seen in June 2021.

    ransomwaretargetcompany
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Renames multiple (7286) files with added filename extension

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

    ransomware
  • Enumerates connected drives 3 TTPs 24 IoCs

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

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • System policy modification 1 TTPs 1 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\3f044ba34bdf3c049e1f2468c91339ffc71d61fea913a43f876b8ba05211d0dc.exe
    "C:\Users\Admin\AppData\Local\Temp\3f044ba34bdf3c049e1f2468c91339ffc71d61fea913a43f876b8ba05211d0dc.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1200
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2404
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2156
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1540
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:1664

Network

MITRE ATT&CK Enterprise v15

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Downloads

  • C:\HOW TO BACK FILES.txt
    Filesize

    1KB

    MD5

    85be668c2ada0dcd3c83468f1f365cc5

    SHA1

    77813edf059bb09cfa51131b4a51e1e7c7b8c124

    SHA256

    c3038c7c1a2068b44235b94b05678b3c970f1c428c9dbd44bd969ca07edfe62b

    SHA512

    6b089393d2cd7d2e4a6e9a1b5f24e8064b66f9576d95fc217f1f59d995cf4877ae7650528a27d7c2653d41eb93076f1f97dc92a77cb42236e8aa498856f053de

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