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Overview

overview

10

Static

static

3

90570f4d0c...35.exe

windows7-x64

10

90570f4d0c...35.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    137s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240319-en
  • resource tags

    arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
  • submitted
    20/03/2024, 10:55

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General

  • Target

    90570f4d0c891fa402ebd9e717f2e336cdadaffc408b345e4d347a2f84265f35.exe

  • Size

    370KB

  • MD5

    68c18c6e22a5803ddd0844d8e55cf6c1

  • SHA1

    ab98918ccfab525a92756dc5289e0af13e3a1d5d

  • SHA256

    90570f4d0c891fa402ebd9e717f2e336cdadaffc408b345e4d347a2f84265f35

  • SHA512

    8581ad22c0104777290837f977439f3d466926c62f741982abcec860ed5379ffaea99c15fcbc133495662f8a028fc7b487ab52338125a00bfd267a60867e24f8

  • SSDEEP

    6144:l0gfMLaZd9sw69XKKDH308uOGKP/bxXuIrEL3/zBg:NiaZd9xXKDHhJGulX6S

Score
10/10
targetcompanyevasionransomware

Malware Config

Extracted

Path

F:\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: A24388345F4161E99E6CDD1A 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 (4996) 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\90570f4d0c891fa402ebd9e717f2e336cdadaffc408b345e4d347a2f84265f35.exe
    "C:\Users\Admin\AppData\Local\Temp\90570f4d0c891fa402ebd9e717f2e336cdadaffc408b345e4d347a2f84265f35.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:2884
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1268
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2356
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2176
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2960

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • F:\HOW TO BACK FILES.txt
    Filesize

    1KB

    MD5

    5718503cdc896b3f8c23eb855a608a3e

    SHA1

    97bd640162e5275d21196d3d20b7ed25653213a6

    SHA256

    e24e70638656ec2ea3e55d7c75daadb9207afa33d6fe9ade508e7292c79c9318

    SHA512

    ff4e520b8a1e3a410026da3d89637c4d8a79a507f1c86ade61ccf8c14fd6e72bfa68e4615dd53b2fcdbc43b83bc55a8b640f2705fb17fb26fb1ec2de43218a61

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