Overview

overview

10

Static

static

3

7f23383db8...5a.exe

windows7-x64

10

7f23383db8...5a.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    117s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    20-03-2024 10:48

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General

  • Target

    7f23383db868ce94c91cc1b6041f6b997fb604d77b2959bb4945632eaf4ee05a.exe

  • Size

    6.0MB

  • MD5

    66946f4914dff619a1c4bae465d35fa0

  • SHA1

    3642996044cd85381b19f28a9ab6763e2bab653c

  • SHA256

    7f23383db868ce94c91cc1b6041f6b997fb604d77b2959bb4945632eaf4ee05a

  • SHA512

    de28c9cce7b4919c710391a525fc1c6a3b391c6b4b03b2b0dad01e42387625fc70a895bd909333d5bf6f5d49f66cadcc2ec630aa02cc94e4c0333c97cbbe8cc6

  • SSDEEP

    98304:9caoZQU7LgG4PwVIsWE61NQq7vW+WHTemGoMF:9c1uUwfHNQqYTemGoMF

Score
10/10
targetcompanyevasionransomware

Malware Config

Extracted

Path

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

Family

targetcompany

Ransom Note
Hello Your data has been stolen and encrypted We will delete the stolen data and help with the recovery of encrypted files after payment has been made Do not try to change or restore files yourself, this will break them We provide free decryption for any 3 files up to 3MB in size on our website How to contact with us: 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: A6DEF4E158708AAD1BF844DF 5) You will see chat, 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 (7190) 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\7f23383db868ce94c91cc1b6041f6b997fb604d77b2959bb4945632eaf4ee05a.exe
    "C:\Users\Admin\AppData\Local\Temp\7f23383db868ce94c91cc1b6041f6b997fb604d77b2959bb4945632eaf4ee05a.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:1996
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2532
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2556
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1336
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2588

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    1KB

    MD5

    b3b6ebd10052a8937b317f1fed584070

    SHA1

    99aaf96b8e574a3c47913fbcc8a54ceede573fbe

    SHA256

    4a36643303ba57d64011193d291e4c7828ae4e55de77ca0f2c74e998ca964fe0

    SHA512

    222f5498a5604975dc42d3e506796f065ec9c397f250c1a61e793e01c63ff777c51ee7c6ecf6c5702b7fc3bdca6bffec20027881e57a9e7a30298a8d34760012

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