Overview

overview

10

Static

static

10

2024-05-15...uk.exe

windows7-x64

10

2024-05-15...uk.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-05-2024 10:28

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General

  • Target

    2024-05-15_759444e3c79e8f7662457b4bd662feb0_gazer_ryuk.exe

  • Size

    6.1MB

  • MD5

    759444e3c79e8f7662457b4bd662feb0

  • SHA1

    c966bcfe7f2704c3507c56b8336ea4d0878b1123

  • SHA256

    f17ee95e3e9843832c7e27a03dac5db605bcb1624d885005287ee900834491b2

  • SHA512

    0901aaf04b352c7a001eed1da343caf17d96559518111d91d0fce4c3b3cbc736a3b8203907b6790085344bfa4a34c3da698d18beed5334467dec4231ef5aba1e

  • SSDEEP

    49152:mkB988jwQmEcgxFF7q22WJxdyKv8ySStzKb/3k2OSaLCvE55pCx2WampGjnRzNvo:VFNdPSSE/AL5pCx2HmpGjnRzNv3

Score
10/10
targetcompanyevasionransomware

Malware Config

Extracted

Path

\Device\HarddiskVolume1\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: 0180B3F471EDC37750772010 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 (6525) 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\2024-05-15_759444e3c79e8f7662457b4bd662feb0_gazer_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-15_759444e3c79e8f7662457b4bd662feb0_gazer_ryuk.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:3712
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3012
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:1924
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:412
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:1248

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    1KB

    MD5

    5f7df4fd7239513495fe047d51f97278

    SHA1

    96b14ec9a6d3cc00214bba275b2c7c3101adea47

    SHA256

    0bfb24b5ead86055130cc44f12e3b9eedabe76cb6264a4069ed52eac4aeb346c

    SHA512

    6d5932837e03eee0a1a88e385039b8a7ada21efccfa8de1c0ced54cf173138ee0bd7b7a3ef7cde899561a30d54fccfb054eb18a854073af1876ac3eb3ae2bcd5

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