Overview

overview

10

Static

static

10

2024-03-20...uk.exe

windows7-x64

10

2024-03-20...uk.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    151s
  • 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 05:17

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General

  • Target

    2024-03-20_9729373f42c999ea9ade560820df7102_gazer_ryuk.exe

  • Size

    6.0MB

  • MD5

    9729373f42c999ea9ade560820df7102

  • SHA1

    1070753d6a9b05e35324396d320024ebf042d8c7

  • SHA256

    9ce792c84ac112d1958875b4ccbc7d1747ad416349edb0b21021b1863e15b78f

  • SHA512

    1134b8067ec6979292a29dba12f8c989729156b6417cdc00c901c7adbb5c8c559cc1a918529571ea1296e3770a063be750a15c9458b1fcaec104e0f3e0a0200e

  • SSDEEP

    98304:9caoZQU7LgG4PwVIsWE61NQq7vW+WHTemGoM:9c1uUwfHNQqYTemGoM

Score
10/10
targetcompanyevasionransomware

Malware Config

Extracted

Path

C:\Users\Admin\Contacts\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 (6502) 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\2024-03-20_9729373f42c999ea9ade560820df7102_gazer_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-20_9729373f42c999ea9ade560820df7102_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:3668
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1828
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:3364
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4864
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:5072

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\microsoft.system.package.metadata\S-1-5-21-983155329-280873152-1838004294-1000-MergedResources-0.pri
    Filesize

    70KB

    MD5

    07a12f33d5c5d9295d13a1d6b283c68b

    SHA1

    359630d75cd28482b3109ad79cf93d21a0565f29

    SHA256

    1bc724cd6684f4a3841776188634bc3e5ac1fb4f466e2fcd466923f35687497d

    SHA512

    ef544002264e3553c7c618d9c214faf81a17775815bd13937434837d4e38c18aa8e3c9e9f3b30b9b3e0314aea319d8feb794effc6c992b1d74556b7c844d4db5

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  • C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\microsoft.system.package.metadata\resources.ff33ee1b.pri
    Filesize

    137KB

    MD5

    dc1cd6f4d05286a78de47fdd3ed70ec0

    SHA1

    64a31de8a9dc5e3edee7d591d3d376e61da874b3

    SHA256

    89746bd34e2652fd214ed9f87a47e58d7ceb1a4dfff50b77d95ef88d3e900f55

    SHA512

    7f1b62993449e533cdcb799d877188154d0a7d6c27c06ef1e991e0f22b50b369560adb148f83929f0261ccfa70c34872c8d84a86937916e160d997974c77f775

    Download Submit

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

    1KB

    MD5

    b3b6ebd10052a8937b317f1fed584070

    SHA1

    99aaf96b8e574a3c47913fbcc8a54ceede573fbe

    SHA256

    4a36643303ba57d64011193d291e4c7828ae4e55de77ca0f2c74e998ca964fe0

    SHA512

    222f5498a5604975dc42d3e506796f065ec9c397f250c1a61e793e01c63ff777c51ee7c6ecf6c5702b7fc3bdca6bffec20027881e57a9e7a30298a8d34760012

    Download Submit