General

  • Target

    a3113438508c7141c5f4cd4ad3ea64a4e9f08a87944ad2ceb5760e539e6a8d1a

  • Size

    735KB

  • Sample

    240114-2baqzsddbp

  • MD5

    3c2b31e7c091650e12934ee8eeaeeb58

  • SHA1

    5848274e0b6da2d94d28b32314a5b9b56d2d7a5e

  • SHA256

    a3113438508c7141c5f4cd4ad3ea64a4e9f08a87944ad2ceb5760e539e6a8d1a

  • SHA512

    fde24a46c657248611e27feb5835eb76e12ba828028b1ba514ff98cf5046f122d68e179923f6c52edec0c97edc578f7a6e0671eda12799ce4351f934db0d6100

  • SSDEEP

    12288:89z7w/ixbv7lzUwXOwuG6rVAPJChCEzIa5vMFiZL1jb1yP0t5BwEYNi7/S:89z7wibTxUwXOw6WIDzXyiZW09fei7

Malware Config

Extracted

Family

djvu

C2

http://habrafa.com/test1/get.php

Attributes
  • extension

    .cdpo

  • offline_id

    Bn3q97hwLouKbhkQRNO4SeV07gjdEQVm8NKhg0t1

  • payload_url

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

    http://habrafa.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-FCWSCsjEWS Price of private key and decrypt software is $1999. Discount 50% available if you contact us first 72 hours, that's price for you is $999. 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: 0844OSkw

rsa_pubkey.plain

Targets

    • Target

      a3113438508c7141c5f4cd4ad3ea64a4e9f08a87944ad2ceb5760e539e6a8d1a

    • Size

      735KB

    • MD5

      3c2b31e7c091650e12934ee8eeaeeb58

    • SHA1

      5848274e0b6da2d94d28b32314a5b9b56d2d7a5e

    • SHA256

      a3113438508c7141c5f4cd4ad3ea64a4e9f08a87944ad2ceb5760e539e6a8d1a

    • SHA512

      fde24a46c657248611e27feb5835eb76e12ba828028b1ba514ff98cf5046f122d68e179923f6c52edec0c97edc578f7a6e0671eda12799ce4351f934db0d6100

    • SSDEEP

      12288:89z7w/ixbv7lzUwXOwuG6rVAPJChCEzIa5vMFiZL1jb1yP0t5BwEYNi7/S:89z7wibTxUwXOw6WIDzXyiZW09fei7

    • Detect Vidar Stealer

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Adds Run key to start application

    • 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