General

  • Target

    5bcf652c96d961dda03c272d11ea04e25efefbcbff3c4b83e572c3ac523813f7

  • Size

    798KB

  • Sample

    240328-2ev64aba78

  • MD5

    96b8da4c66a00c836439f6a65cd9a9f6

  • SHA1

    b89676216818fc360ddad03dee21fcdc463bd725

  • SHA256

    5bcf652c96d961dda03c272d11ea04e25efefbcbff3c4b83e572c3ac523813f7

  • SHA512

    b5bd18d2b675f433360a60f3d92e36db3186ab8e86a7ad477403bc7e253ff04cf2721d747bca7251efba0d720cbc14254adf92cd0efcd5992551d65c9ade81a1

  • SSDEEP

    12288:83FcZ1qroZvCbPslVKOdtZ5LoYf7IX3tSzm0WKrqksDHaAsF:YcsRP0wOd1Lot30WKuksDHFs

Malware Config

Extracted

Family

djvu

C2

http://sajdfue.com/test1/get.php

Attributes
  • extension

    .vook

  • offline_id

    1eSPzWRaNslCgtjBZfL5pzvovoiaVI4IZSnvAwt1

  • payload_url

    http://sdfjhuz.com/dl/build2.exe

    http://sajdfue.com/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. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/3ed7a617738550b0a00c5aa231c0752020240316170955/d71ce1 Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. 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: 0857PsawqS

rsa_pubkey.plain

Extracted

Family

vidar

Version

8.6

Botnet

5739ef2bbcd39fcd59c5746bfe4238c5

C2

https://steamcommunity.com/profiles/76561199658817715

https://t.me/sa9ok

Attributes
  • profile_id_v2

    5739ef2bbcd39fcd59c5746bfe4238c5

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Targets

    • Target

      5bcf652c96d961dda03c272d11ea04e25efefbcbff3c4b83e572c3ac523813f7

    • Size

      798KB

    • MD5

      96b8da4c66a00c836439f6a65cd9a9f6

    • SHA1

      b89676216818fc360ddad03dee21fcdc463bd725

    • SHA256

      5bcf652c96d961dda03c272d11ea04e25efefbcbff3c4b83e572c3ac523813f7

    • SHA512

      b5bd18d2b675f433360a60f3d92e36db3186ab8e86a7ad477403bc7e253ff04cf2721d747bca7251efba0d720cbc14254adf92cd0efcd5992551d65c9ade81a1

    • SSDEEP

      12288:83FcZ1qroZvCbPslVKOdtZ5LoYf7IX3tSzm0WKrqksDHaAsF:YcsRP0wOd1Lot30WKuksDHFs

    • Detect Vidar Stealer

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Adds Run key to start application

    • 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 v15

Tasks