General

  • Target

    5921d92a916f3042ec42c1790f42ea0da59279d9f87400f0e75da0fe480968d7

  • Size

    754KB

  • Sample

    220425-yk7wasdcb9

  • MD5

    6cf1cce423441781edc088e77c368b2d

  • SHA1

    1cab4b8340d3bcd6a944e3192845de07d166d6d1

  • SHA256

    5921d92a916f3042ec42c1790f42ea0da59279d9f87400f0e75da0fe480968d7

  • SHA512

    751382c354c3436e15a8e3786c3c4e68160d282135353b1f73c42edfe13d23bbab69c90295a7c78f9e30b7db0cf454e4ca477c3f38d39ba7c5ebea0b343591ad

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

      5921d92a916f3042ec42c1790f42ea0da59279d9f87400f0e75da0fe480968d7

    • Size

      754KB

    • MD5

      6cf1cce423441781edc088e77c368b2d

    • SHA1

      1cab4b8340d3bcd6a944e3192845de07d166d6d1

    • SHA256

      5921d92a916f3042ec42c1790f42ea0da59279d9f87400f0e75da0fe480968d7

    • SHA512

      751382c354c3436e15a8e3786c3c4e68160d282135353b1f73c42edfe13d23bbab69c90295a7c78f9e30b7db0cf454e4ca477c3f38d39ba7c5ebea0b343591ad

    • 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