General

  • Target

    2ebecdc4b57c18701eb0fe784ec44b115be87941ff62138925bd0a6df2adad94

  • Size

    752KB

  • Sample

    220425-wel1jacha3

  • MD5

    6c1e5f0727dbfd5dc5fb66f8f6b90e26

  • SHA1

    af18cb5ed91a3c6487a3102e8618fdc4ce9f0ce4

  • SHA256

    2ebecdc4b57c18701eb0fe784ec44b115be87941ff62138925bd0a6df2adad94

  • SHA512

    c704f254da513cdfd30bc0aebb233cbf52d9121dba1b91886b2d8cf141c08b16b4d40f08103fcf6d3ea7b852346479ffb382d7aed17a436efee016f8cbb7cd0b

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

      2ebecdc4b57c18701eb0fe784ec44b115be87941ff62138925bd0a6df2adad94

    • Size

      752KB

    • MD5

      6c1e5f0727dbfd5dc5fb66f8f6b90e26

    • SHA1

      af18cb5ed91a3c6487a3102e8618fdc4ce9f0ce4

    • SHA256

      2ebecdc4b57c18701eb0fe784ec44b115be87941ff62138925bd0a6df2adad94

    • SHA512

      c704f254da513cdfd30bc0aebb233cbf52d9121dba1b91886b2d8cf141c08b16b4d40f08103fcf6d3ea7b852346479ffb382d7aed17a436efee016f8cbb7cd0b

    • 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

    • 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