General

  • Target

    9dfbf2d135fd68c1aa0f6332902f81043c9a3efad5b89807af16209436372b69

  • Size

    829KB

  • Sample

    231121-fh4fzsda8s

  • MD5

    b85c4c3bf725cef015c9fa282ad43541

  • SHA1

    5c313f5828dc9484c68cc434b853f58069c46899

  • SHA256

    9dfbf2d135fd68c1aa0f6332902f81043c9a3efad5b89807af16209436372b69

  • SHA512

    f8f418b9cb378b7bdc6c1718a27b4dc7bd56ef196b6d14daa6276385897f9d2b445de61811fc1d930479480de6a4b968bae89bc4509a3c425fde2078fd0582b4

  • SSDEEP

    12288:1SygZccsyNKIkmVrKluacwZm4hgibX1vXObXmjCMtOeAZ8I0NUftc9A:1SygCpkVVwZflbFomxt/v7NC

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/lancer/get.php

Attributes
  • extension

    .iicc

  • offline_id

    MI4io8cIlhyYsGaDxoKsbpWzfIe5lGPE0dYtrht1

  • payload_url

    http://brusuax.com/dl/build2.exe

    http://zexeq.com/files/1/build3.exe

  • ransomnote

    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-Y6UIMfI736 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: 0826ASdw

rsa_pubkey.plain

Targets

    • Target

      9dfbf2d135fd68c1aa0f6332902f81043c9a3efad5b89807af16209436372b69

    • Size

      829KB

    • MD5

      b85c4c3bf725cef015c9fa282ad43541

    • SHA1

      5c313f5828dc9484c68cc434b853f58069c46899

    • SHA256

      9dfbf2d135fd68c1aa0f6332902f81043c9a3efad5b89807af16209436372b69

    • SHA512

      f8f418b9cb378b7bdc6c1718a27b4dc7bd56ef196b6d14daa6276385897f9d2b445de61811fc1d930479480de6a4b968bae89bc4509a3c425fde2078fd0582b4

    • SSDEEP

      12288:1SygZccsyNKIkmVrKluacwZm4hgibX1vXObXmjCMtOeAZ8I0NUftc9A:1SygCpkVVwZflbFomxt/v7NC

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • 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 v15

Tasks