General

  • Target
    file.exe
  • Size 285KB
  • Sample221105-sdvz9sgda5
  • SHA256 f3d6ae3f3e6f54bf4b9e34b7a39f3123dd69b87f4e0462dd4e8304791f2ac1f0
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • djvu

C2
  • http://fresherlights.com/lancer/get.php

Attributes
  • extension

    .zate

  • offline_id

    VW11mMMPfxPTr0epvPSw1m6GBzcKFb3H2Lm2nyt1

  • payload_url

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

    http://fresherlights.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-XIH9asXhHQ 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: 0600Jhyjd

rsa_pubkey.plain

Extracted

Family
  • redline

Botnet
  • Mast1000

C2
  • 78.153.144.3:2510

Attributes
  • auth_value

    8e868b09fa3921a313a9a4fa08602f0a

Targets

    • Target
      file.exe
    • Size 285KB
    • SHA256 f3d6ae3f3e6f54bf4b9e34b7a39f3123dd69b87f4e0462dd4e8304791f2ac1f0
    • MD5 SHA1 SHA512 SSDEEP
    • Detected Djvu ransomware

    • Detects Smokeloader packer

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Blocklisted process makes network request

    • 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

    • 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 Microsoft Outlook profiles

    • 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