Overview

overview

10

Static

static

3

Ransom.exe

windows7-x64

10

Analysis

  • max time kernel
    316s
  • max time network
    321s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    13-05-2024 11:36

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General

  • Target

    Ransom.exe

  • Size

    478KB

  • MD5

    84031b20c90d39fbe5cf32d911d9d97f

  • SHA1

    59d39489b0a6df6cebdca58582aae00570e77ffb

  • SHA256

    cd4a0eb09f75eec216da6059e0192a1a544b4ee4a97c1af6a11151ecad1fd546

  • SHA512

    a286e1806a94a5919dab1c200c6dd7eea4a0d723890e9d883d77b91ca73e27d8ea6d5961995512b4730c1f28f245d0c7d51f916e5fdf945b7c1d0b661ddccce2

  • SSDEEP

    6144:g0wWJI6+TLinfTRwkL74ST1AtwEfDasWxxsBhi37b8o6XCFy/dCZB8n4DT:4QfSkL74STmtqsWxxAhIIlXC4/S8GT

Score
10/10
targetcompanyevasionransomware

Malware Config

Extracted

Path

\Device\HarddiskVolume1\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: 7DD72DB7D11495B681DE26B3 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 (7274) 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 FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • System policy modification 1 TTPs 1 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ransom.exe
    "C:\Users\Admin\AppData\Local\Temp\Ransom.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:2088
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3032
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2612
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2548
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2656
  • C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\HOW TO BACK FILES.txt
    1⤵
    • Suspicious use of FindShellTrayWindow
    PID:1312
  • C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Public\Desktop\HOW TO BACK FILES.txt
    1⤵
    • Suspicious use of FindShellTrayWindow
    PID:1484
  • C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe"
    1⤵
      PID:1976

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • \Device\HarddiskVolume1\HOW TO BACK FILES.txt
      Filesize

      908B

      MD5

      f86d4c7447221aff4649f3dfa57b6555

      SHA1

      8687047d14074ff8a503ab540512ccb3ac98541a

      SHA256

      3dc9fcce6d082ebf47dce6de1311d9ac229c0ea239bc4764d48a4151b800af92

      SHA512

      5dc43aedddb4839f91a4148e84f56cfa1572ad40876448a17dafbfb8b94f6dc6f3a8618c107281fe80c1b6cdc0fa9662004f42a36fcafd0c106c8d9813d8ecca

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