General

  • Target

    ae9773dce984bb907fc761fdc99c0e3f5e00847e5a7cf5e8cc311f80dd759c58

  • Size

    810KB

  • Sample

    220426-b4a94segfm

  • MD5

    de2dd290b7c50cdb372e53fc8decd433

  • SHA1

    e83a467b8e19f168b5848cac09d4faef1fb39d59

  • SHA256

    ae9773dce984bb907fc761fdc99c0e3f5e00847e5a7cf5e8cc311f80dd759c58

  • SHA512

    d22350ce90015ceac17b0063e9b51fffe15497b1515b6fc6158567ef9681962475478cc0a6e620b4f51ea0ad58df3f05532db2588df800cf9a147aa9e99537bd

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/fhsgtsspen6/get.php

Attributes
  • extension

    .dewd

  • 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: 0463JIjdm

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

      ae9773dce984bb907fc761fdc99c0e3f5e00847e5a7cf5e8cc311f80dd759c58

    • Size

      810KB

    • MD5

      de2dd290b7c50cdb372e53fc8decd433

    • SHA1

      e83a467b8e19f168b5848cac09d4faef1fb39d59

    • SHA256

      ae9773dce984bb907fc761fdc99c0e3f5e00847e5a7cf5e8cc311f80dd759c58

    • SHA512

      d22350ce90015ceac17b0063e9b51fffe15497b1515b6fc6158567ef9681962475478cc0a6e620b4f51ea0ad58df3f05532db2588df800cf9a147aa9e99537bd

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

      suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    • Vidar 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

    • 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