Overview

overview

10

Static

static

3

7c10256d93...3e.exe

windows7-x64

10

7c10256d93...3e.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    133s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/03/2024, 10:46

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General

  • Target
    7c10256d9358d4cadb96b8160651172b6ac9a4bf898868823f7c76bf33cb823e.exe
  • Size 478KB
  • Sample240320-mt65ksfe8s
  • SHA256 7c10256d9358d4cadb96b8160651172b6ac9a4bf898868823f7c76bf33cb823e
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
targetcompanyevasionransomware

Malware Config

Extracted

Path

  • C:\Users\Admin\Contacts\HOW TO BACK FILES.txt

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: AAC8D504161F3D6C6BC05DD5 5) You will see chat, payment information and we can make free test decryption here Our blog of leaked companies: wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion �
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 (6519) files with added filename extension

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

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • System policy modification 1 TTPs 1 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\7c10256d9358d4cadb96b8160651172b6ac9a4bf898868823f7c76bf33cb823e.exe
    "C:\Users\Admin\AppData\Local\Temp\7c10256d9358d4cadb96b8160651172b6ac9a4bf898868823f7c76bf33cb823e.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:552
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5108
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:6104
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5040
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:1468

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        resources.e1dabada.pri
        • Path C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.19071.19011.0_x64__8wekyb3d8bbwe\microsoft.system.package.metadata\resources.e1dabada.pri
        • Size 100KB
        • SHA256 dbee54c7fb678c0abfd67f8590acad9ed813cdaa3ad596ca6662ba8f54bc09f3
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        HOW TO BACK FILES.txt
        • Path C:\Users\Admin\Contacts\HOW TO BACK FILES.txt
        • Size 910B
        • SHA256 351641c69c23a9cd617442d251a67ae1ea42437be96527988a7fb22d9f543794
        • MD5 SHA1 SHA512
        Submit Download