General

  • Target
    29cda14f7b9f0bbe083d9b2d755b33ef.exe
  • Size 794KB
  • Sample210606-3vy6919dej
  • SHA256 46ae16638afbcbf00e00d7159ededd26c1174b241479e6a6ae0d178586eb1019
  • MD5 SHA1 SHA512

Malware Config

Extracted

Path
  • C:\_readme.txt

Ransom Note
  • ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-TFI08DijHt Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0301ewgfDdMVRPbSnFtySupDwbPHDki6lHhdaU8yRerXrXB00l
URLs
  • https://we.tl/t-TFI08DijHt

Extracted

Family
  • vidar

Version
  • 39.2

Botnet
  • 517

C2
  • https://dimashub.tumblr.com

Attributes
  • profile_id

    517

Targets

    • Target
      29cda14f7b9f0bbe083d9b2d755b33ef.exe
    • Size 794KB
    • SHA256 46ae16638afbcbf00e00d7159ededd26c1174b241479e6a6ae0d178586eb1019
    • MD5 SHA1 SHA512
    • Deletes Windows Defender Definitions

      Uses mpcmdrun utility to delete all AV definitions.

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • Disables Task Manager via registry modification

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

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

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • 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

MITRE ATT&CK Enterprise v6

Tasks