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General

  • Target

    deb7ebd62a390924b91dd3ba906c3e039a37d0d37fbfa8a8b90b95dc3fbb5869

  • Size

    880KB

  • Sample

    230211-gdkzhsac6s

  • MD5

    583709743307f1a56efb4530359e5638

  • SHA1

    3286537d896e4276e076cfc28b7a35aad04ec4c2

  • SHA256

    deb7ebd62a390924b91dd3ba906c3e039a37d0d37fbfa8a8b90b95dc3fbb5869

  • SHA512

    76b484411644f93860c1724434cb2bc838c15f507d76c3543be9b3714a2e276ed6bf734f96a9b9e8a6b7008fbaf72a691cb9cc5bcaacbc06473e36caf1e5e874

  • SSDEEP

    12288:sbs0DD6kx+5n8trICS6tYK/Zgv070oQYRrcQBMdk:stDpxmn8NI6R8o1AQBMdk

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .vvmm

  • offline_id

    9c20OtJsXdFeF07b1IeFK5ERGv1zIb659YG380t1

  • payload_url

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

    http://bihsy.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-IiDRZpWuwI 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: 0643JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

2.4

Botnet

19

Attributes
  • profile_id

    19

Targets

    • Target

      deb7ebd62a390924b91dd3ba906c3e039a37d0d37fbfa8a8b90b95dc3fbb5869

    • Size

      880KB

    • MD5

      583709743307f1a56efb4530359e5638

    • SHA1

      3286537d896e4276e076cfc28b7a35aad04ec4c2

    • SHA256

      deb7ebd62a390924b91dd3ba906c3e039a37d0d37fbfa8a8b90b95dc3fbb5869

    • SHA512

      76b484411644f93860c1724434cb2bc838c15f507d76c3543be9b3714a2e276ed6bf734f96a9b9e8a6b7008fbaf72a691cb9cc5bcaacbc06473e36caf1e5e874

    • SSDEEP

      12288:sbs0DD6kx+5n8trICS6tYK/Zgv070oQYRrcQBMdk:stDpxmn8NI6R8o1AQBMdk

    • 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

    • Checks computer location settings

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

    • Executes dropped EXE

    • 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 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