General

  • Target
    https://github.com/Cryakl/Ransomware-Database
  • Sample251108-vm41msskgk

Malware Config

Extracted

Path
  • C:\Users\Admin\Links\HELP_DECRYPT_YOUR_FILES.txt

Ransom Note
  • Oops All Of your important files were encrypted Like document pictures videos etc.. Don't worry, you can return all your files! All your files, documents, photos, databases and other important files are encrypted by a strong encryption. How to recover files? RSA is a asymmetric cryptographic algorithm, you need one key for encryption and one key for decryption so you need private key to recover your files. It’s not possible to recover your files without private key. The only method of recovering files is to purchase an unique private key.Only we can give you this key and only we can recover your files. What guarantees you have? As evidence, you can send us 1 file to decrypt by email We will send you a recovery file Prove that we can decrypt your file Please You must follow these steps carefully to decrypt your files: Send $500 worth of bitcoin to wallet: bc1q6ug0vrxz66d564qznclu9yyyvn6zurskezmt64 after payment,we will send you Decryptor software contact email: [email protected] Your personal ID: tWkPtKLXGMYnREnbLATFeGWiuU0KTl6EXzftvp5C5SD8R4PEbIdmqmekDW1UN7RtnZhB5YjgHEp4GZbvmmWdijwb6As5qO4t24Ae4VUil4nEVnkegyXoQRnPFkZ9FANn/1lMEyYxGvBPd+bYqfV8trhvsa63W0bS2MwQ1ExliKo=

Targets

    • Detect Rhysida ransomware

    • Hades Ransomware

      Ransomware family attributed to Evil Corp APT first seen in late 2020.

    • Hades family

    • Hades payload

    • Rhysida

      Rhysida is a ransomware that is written in C++ and discovered in 2023.

    • Rhysida family

    • CryptOne packer

      Detects CryptOne packer defined in NCC blogpost.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Renames multiple (103) files with added filename extension

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • Drops startup file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Hide Artifacts: Hidden Window

      Windows that would typically be displayed when an application carries out an operation can be hidden.

    • Indicator Removal: Clear Persistence

      Clear artifacts associated with previously established persistence like scheduletasks on a host.

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

    • Legitimate hosting services abused for malware hosting/C2

    • ConfuserEx .NET packer

      Detects ConfuserEx .NET packer.

    • Sets desktop wallpaper using registry

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v16

Tasks