General

  • Target

    90b383f86d64f295e926b3194241eef63c4ebde2d0c5128e05522742c4142bbc

  • Size

    809KB

  • Sample

    220426-cfl75safh3

  • MD5

    9bd6479dfc36a01e42075cd907e65d5e

  • SHA1

    948b1b7b520ed96378e791f4a48f9bc22389c3f3

  • SHA256

    90b383f86d64f295e926b3194241eef63c4ebde2d0c5128e05522742c4142bbc

  • SHA512

    54ba9fc36ebd75e104cf0d462f88a44e82463a97b18425344312be41c99697130bd21004ccf4372aa7c60c77ff6a06eb3c90610e2c5a2a09ef9cba8636091eac

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/test1/get.php

Attributes
  • extension

    .jhbg

  • offline_id

    u8l8S1WNPrtypqzE5TnCErdyo7HLDDCUTJi8Vbt1

  • payload_url

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

    http://fuyt.org/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://www.filemail.com/d/cckhkpsqjvnbjhf 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: 0460JIjdm

rsa_pubkey.plain

Extracted

Family

vidar

Version

51.8

Botnet

517

C2

https://t.me/mm20220428

https://koyu.space/@ronxik123

Attributes
  • profile_id

    517

Targets

    • Target

      90b383f86d64f295e926b3194241eef63c4ebde2d0c5128e05522742c4142bbc

    • Size

      809KB

    • MD5

      9bd6479dfc36a01e42075cd907e65d5e

    • SHA1

      948b1b7b520ed96378e791f4a48f9bc22389c3f3

    • SHA256

      90b383f86d64f295e926b3194241eef63c4ebde2d0c5128e05522742c4142bbc

    • SHA512

      54ba9fc36ebd75e104cf0d462f88a44e82463a97b18425344312be41c99697130bd21004ccf4372aa7c60c77ff6a06eb3c90610e2c5a2a09ef9cba8636091eac

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • 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 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