Overview

overview

10

Static

static

10

2024-06-11...uk.exe

windows7-x64

10

2024-06-11...uk.exe

windows10-2004-x64

10

Resubmissions

21-08-2024 08:43

240821-km338syhma 10

11-06-2024 10:51

240611-mx91msthkh 10

Analysis

  • max time kernel
    119s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    11-06-2024 10:51

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General

  • Target

    2024-06-11_e841da9fde650a64ba943664e6ab8dac_gazer_ryuk.exe

  • Size

    6.1MB

  • MD5

    e841da9fde650a64ba943664e6ab8dac

  • SHA1

    9ccb6b2be009e6839fef5f704ce000f3eecf0592

  • SHA256

    aca683c066dd7911dc5f31f97a600a52a207ea37c1414f759ef18975e273db03

  • SHA512

    4aff1460df3110de19d2f5605620b702c3f28e381b31dc5210a518598e7fecd980c35a7df36cb71cc08020760eb6e89c5922a0b9ee34420d6681a1ee371d4b22

  • SSDEEP

    49152:d6B5w3LVcmVooH3wH7nW9n95hWQJpUU3Lj4CtoX7t7uwPuo4Lk7BP9tYIFVVMTWr:I5yEg38oLrQlr7JGTW0TO4HWDq2EO

Score
10/10
targetcompanyevasionransomware

Malware Config

Extracted

Path

F:\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: C7A736F506B0D2A6C68FCE0D 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 (7275) 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\2024-06-11_e841da9fde650a64ba943664e6ab8dac_gazer_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-11_e841da9fde650a64ba943664e6ab8dac_gazer_ryuk.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:2660
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2948
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2608
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2500
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2596

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • F:\HOW TO BACK FILES.txt
    Filesize

    1KB

    MD5

    365bd3a33cc760ab415d5e373fe1b69a

    SHA1

    c5e53f7f095ec2e0b78e69236bc7d3dbb7863823

    SHA256

    d3cfda8e4d794508c70f175d3f86efaa1a7cc3c14d9627f9c454fb375152b405

    SHA512

    8c9871ab4f54d800a44dbca7248ca974dcafbaa3efd10287ffb059d1ad005be9dcdb2d44dfabce6789fe6038d2348a1390087b74a0cee339b34fe4949cd6412f

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