General

  • Target

    b7a4ad44b63fd743b8a056644fb4cde22f16df1f9d9ba122129e487b3992309b

  • Size

    810KB

  • Sample

    220422-vw9mgsecf2

  • MD5

    d8dc8d166d6dac96d63938b27500a4d3

  • SHA1

    1647424f1d720888b7da4fc517000a6f1834aa7d

  • SHA256

    b7a4ad44b63fd743b8a056644fb4cde22f16df1f9d9ba122129e487b3992309b

  • SHA512

    958d4d0e1a8af09714b18f069fa4b86662183dcfb0312e05ba665f480665dc0eb37d7fd99dba2ff1eefdd1b25c4f3d6296f42da687ba7fabbea56ec3e684bd1b

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .msjd

  • offline_id

    Xe4NOamOTHZrARTiL9dfVzAylFrEWLGGbr2dngt1

  • 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://we.tl/t-FT7BNVbXC9 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: 0455JIjdm

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

      b7a4ad44b63fd743b8a056644fb4cde22f16df1f9d9ba122129e487b3992309b

    • Size

      810KB

    • MD5

      d8dc8d166d6dac96d63938b27500a4d3

    • SHA1

      1647424f1d720888b7da4fc517000a6f1834aa7d

    • SHA256

      b7a4ad44b63fd743b8a056644fb4cde22f16df1f9d9ba122129e487b3992309b

    • SHA512

      958d4d0e1a8af09714b18f069fa4b86662183dcfb0312e05ba665f480665dc0eb37d7fd99dba2ff1eefdd1b25c4f3d6296f42da687ba7fabbea56ec3e684bd1b

    • 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