General

  • Target

    0b5bc323bc46dacf021d4cda8b17fce209a211d9045d0e7137f201560cbbc2eb

  • Size

    769KB

  • Sample

    230830-fw642ach8t

  • MD5

    a1db9393ae5f10bc0add138a69870300

  • SHA1

    5b6610a1f618bbf3b6124189c7faeac4ce52ff63

  • SHA256

    0b5bc323bc46dacf021d4cda8b17fce209a211d9045d0e7137f201560cbbc2eb

  • SHA512

    40a46cab96eef27f8c298f2dcba1a8475d907305246b8eeb21b0faa74cba22094abe6d0cb23298650d0f2ee382ee7614d9735263146c9e6c0b5fe61577564fa1

  • SSDEEP

    12288:k44xpSnz8It+X8cEpcAT3k26Q4Knd7mojqqdsMOPXSR4I8erv:k4HzHtV9AkKoj7dxgSOI8er

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/raud/get.php

Attributes
  • extension

    .nztt

  • offline_id

    fe7vbai057v1PzegcJrFdG7DjT3mL5gUtMQkLrt1

  • payload_url

    http://colisumy.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-E4b0Td2MBH 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: 0772JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

5.4

Botnet

25f5344bfcb62e75b7946c3a681aec54

C2

https://t.me/vogogor

https://steamcommunity.com/profiles/76561199545993403

Attributes
  • profile_id_v2

    25f5344bfcb62e75b7946c3a681aec54

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.2.13 (KHTML, like Gecko) Version/16.5.2 Safari/605.2.13

Targets

    • Target

      0b5bc323bc46dacf021d4cda8b17fce209a211d9045d0e7137f201560cbbc2eb

    • Size

      769KB

    • MD5

      a1db9393ae5f10bc0add138a69870300

    • SHA1

      5b6610a1f618bbf3b6124189c7faeac4ce52ff63

    • SHA256

      0b5bc323bc46dacf021d4cda8b17fce209a211d9045d0e7137f201560cbbc2eb

    • SHA512

      40a46cab96eef27f8c298f2dcba1a8475d907305246b8eeb21b0faa74cba22094abe6d0cb23298650d0f2ee382ee7614d9735263146c9e6c0b5fe61577564fa1

    • SSDEEP

      12288:k44xpSnz8It+X8cEpcAT3k26Q4Knd7mojqqdsMOPXSR4I8erv:k4HzHtV9AkKoj7dxgSOI8er

    • 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

    • 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

    • 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