Overview

overview

10

Static

static

3

33e2ab2c90...fd.exe

windows7-x64

10

33e2ab2c90...fd.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    124s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    20-03-2024 10:52

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General

  • Target

    33e2ab2c90488bb9435acdad2b4e63189f67a4eeaab5b38b1dfdbc707f83c4fd.exe

  • Size

    374KB

  • MD5

    d3018d3c959c827fe446af2e857ea65a

  • SHA1

    2a6f5d811deb5f4f3130915532a9926b6d26afe0

  • SHA256

    33e2ab2c90488bb9435acdad2b4e63189f67a4eeaab5b38b1dfdbc707f83c4fd

  • SHA512

    be9792cdb0e5aad09f3e926076bc788ccb06503e23ab6f2ea1f9ce537371ff9cfc018e5549b1823b74e8e347436e5f5fe66ab274c1352af61c69385c28b806e8

  • SSDEEP

    6144:d0dryUTkT5ZLewnleutuIsjrwtO/C3mT+OFGMTZGzxvBKq:0yUc5ZLnc6uIsjrwtv2TPFGMVGzqq

Score
10/10
targetcompanyevasionransomware

Malware Config

Extracted

Path

C:\$Recycle.Bin\HOW TO BACK FILES.txt

Family

targetcompany

Ransom Note
Hello Your files are encrypted and can not be used 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: FD296013CA854F4C2036DD37 5) You will see payment information and we can make free test decryption here 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 (5081) 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\33e2ab2c90488bb9435acdad2b4e63189f67a4eeaab5b38b1dfdbc707f83c4fd.exe
    "C:\Users\Admin\AppData\Local\Temp\33e2ab2c90488bb9435acdad2b4e63189f67a4eeaab5b38b1dfdbc707f83c4fd.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:2244
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2984
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2980
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2588
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2992

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\$Recycle.Bin\HOW TO BACK FILES.txt
    Filesize

    1KB

    MD5

    42f2f23eda61c4728b446d02db663136

    SHA1

    c0b4470752106306c8b4ce15d42bfa48fc99d8db

    SHA256

    8353241f95112af734c7a668eec9fee09f79fc2f26570e61c6c31c604e2381f6

    SHA512

    ac6ef5dd287aba1a1911d218cd3ce1166d9a8dcc3698c007e1528c14cca7a5c5436cc4a4e09b31f8599651884cb349890872fb5de63267aad6f90121c86ec671

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