Overview

overview

10

Static

static

3

8901cdfd0b...48.exe

windows7-x64

10

8901cdfd0b...48.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    119s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    20-03-2024 10:55

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General

  • Target

    8901cdfd0b12b47326ca4570c48fdafd6353aab3cfa2e6be3accdab6374ec848.exe

  • Size

    371KB

  • MD5

    5f450ed574e81038b7fe94edfb40834d

  • SHA1

    0318ec8497436a97b7263f9138deefb01d4d9708

  • SHA256

    8901cdfd0b12b47326ca4570c48fdafd6353aab3cfa2e6be3accdab6374ec848

  • SHA512

    686d9fc0f9837e0ddf5f57892e04762aed828a960a983df6b6ab3c8e243d460e1d8c8bd80be0e7c7aa2593d8951cd2b20a1953856567b321e180e6edb8d49c0e

  • SSDEEP

    6144:S0LeYyBiqCw5wLzsEtA6We/p14a0q/HJ5/fzCH:4YyB7Cw+MEtA6db4pq/pNC

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: 6F9B10F3E2EA97BA71EE9D6E 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 (7318) 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\8901cdfd0b12b47326ca4570c48fdafd6353aab3cfa2e6be3accdab6374ec848.exe
    "C:\Users\Admin\AppData\Local\Temp\8901cdfd0b12b47326ca4570c48fdafd6353aab3cfa2e6be3accdab6374ec848.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:2008
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1512
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2196
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1724
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2256

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\HOW TO BACK FILES.txt
    Filesize

    1KB

    MD5

    f2a82f2e71de0a1eeeb4a28bcd8e6dab

    SHA1

    2122c4a06ccc6100b7b1f693ac123a819e62c0b6

    SHA256

    6b3f08e4472d2fc198a35aa0d56027a5aea4e13d2622d0405e8065d14086b244

    SHA512

    1038d4a0cd7601075d0b8a6e252da7ebcf89f0b37676565c04764ff1bc196ce27e017b85e0151945000867190fea7895b7ecea26cb2d7d771a5ef4d38666c261

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