Overview

overview

10

Static

static

3

winprofile

windows7-x64

10

winprofile

windows10-1703-x64

10

Sharing

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General

  • Target
    fadf10b3ec4fd1bdc37866d4c5d2a9816d2a7541bc213ed0a123cb427ddbd581
  • Size 832KB
  • Sample240115-fnhfpsagg4
  • SHA256 fadf10b3ec4fd1bdc37866d4c5d2a9816d2a7541bc213ed0a123cb427ddbd581
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
djvuvidardiscoverypersistenceransomwarestealer

Malware Config

Extracted

Family

  • djvu

C2

  • http://zexeq.com/test1/get.php

Attributes
  • extension

    .cdwe

  • offline_id

    dSwr1XNNi5cIitB5eDPbMANcusB1dWGDB8ToUnt1

  • 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-e21iz7dS58 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: 0842ASdw

rsa_pubkey.plain

Targets

    • Target
      fadf10b3ec4fd1bdc37866d4c5d2a9816d2a7541bc213ed0a123cb427ddbd581
    • Size 832KB
    • SHA256 fadf10b3ec4fd1bdc37866d4c5d2a9816d2a7541bc213ed0a123cb427ddbd581
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    djvudiscoverypersistenceransomwarevidarstealer

    • Detect Vidar Stealer

      stealer

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

      stealervidar

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies file permissions

      discovery

    • Adds Run key to start application

      persistence

    • 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