Overview

overview

10

Static

static

3

7bdbb31e7b...c3.exe

windows7-x64

10

7bdbb31e7b...c3.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    7bdbb31e7bdd77f6f6ef704797de21d051ca5843adfa17c29ad82892475346c3
  • Size 781KB
  • Sample240320-mt1b2afe71
  • SHA256 7bdbb31e7bdd77f6f6ef704797de21d051ca5843adfa17c29ad82892475346c3
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
targetcompanyzgratdiscoveryevasionpersistenceransomwarerat

Malware Config

Extracted

Path

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\Low\HOW TO BACK FILES.txt

  • targetcompany

Ransom Note
  • Hello Your files are encrypted and can not be used We have downloaded your confidential data and are ready to publish it on our blog To return your files in work condition you need decryption tool Follow the instructions to decrypt all your data Do not try to change or restore files yourself, this will break them If you want, on our site you can decrypt one file for free. Free test decryption allowed only for not valuable file with size less than 3MB How to get decryption tool: 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: 4959742CD2C023A5A177B837 5) You will see payment information and we can make free test decryption here 6)After payment, you will receive a tool for decrypting files, and we will delete the data that was taken from you 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

Extracted

Path

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

  • targetcompany

Ransom Note
  • Hello Your files are encrypted and can not be used We have downloaded your confidential data and are ready to publish it on our blog To return your files in work condition you need decryption tool Follow the instructions to decrypt all your data Do not try to change or restore files yourself, this will break them If you want, on our site you can decrypt one file for free. Free test decryption allowed only for not valuable file with size less than 3MB How to get decryption tool: 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: 6D34072730CAF1FFCDBFD956 5) You will see payment information and we can make free test decryption here 6)After payment, you will receive a tool for decrypting files, and we will delete the data that was taken from you 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

Targets

    • Target
      7bdbb31e7bdd77f6f6ef704797de21d051ca5843adfa17c29ad82892475346c3
    • Size 781KB
    • SHA256 7bdbb31e7bdd77f6f6ef704797de21d051ca5843adfa17c29ad82892475346c3
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    targetcompanyzgratdiscoveryevasionpersistenceransomwarerat

    • Detect ZGRat V1

    • 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

    • ZGRat

      ZGRat is remote access trojan written in C#.

      ratzgrat

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Renames multiple (2449) files with added filename extension

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

      ransomware

    • Checks computer location settings

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

    • Modifies file permissions

      discovery

    • Adds Run key to start application

      persistence

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks