Overview

overview

10

Static

static

7dee1ab63f...54.exe

windows7-x64

10

7dee1ab63f...54.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    7dee1ab63f1a5d740024d881bfd38b54.exe
  • Size 228KB
  • Sample221022-evta4saffp
  • SHA256 4e774e220677e8e916ffadee6367d95dddbb1dd32ec5dc49ef17ed7d7ad3792f
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
djvusmokeloaderbackdoorcollectiondiscoverypersistenceransomwaretrojan

Malware Config

Extracted

Family

  • djvu

C2

  • http://winnlinne.com/lancer/get.php

Attributes
  • extension

    .tury

  • offline_id

    Uz66zEbmA32arcxwT81zZhkb23026oHz5iSp8qt1

  • payload_url

    http://rgyui.top/dl/build2.exe

    http://winnlinne.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-o7UXxOstmw 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: 0585Jhyjd

rsa_pubkey.plain

Targets

    • Target
      7dee1ab63f1a5d740024d881bfd38b54.exe
    • Size 228KB
    • SHA256 4e774e220677e8e916ffadee6367d95dddbb1dd32ec5dc49ef17ed7d7ad3792f
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    smokeloaderbackdoortrojandjvucollectiondiscoverypersistenceransomware

    • Detected Djvu ransomware

    • Detects Smokeloader packer

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

      trojanbackdoorsmokeloader

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • Accesses Microsoft Outlook profiles

      collection

    • 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 v6

Tasks