General

  • Target

    264386-buildexe.exe

  • Size

    724KB

  • Sample

    230702-px6z4abe68

  • MD5

    b69360e7d321c9ffa0271177d05b3f75

  • SHA1

    6e13876fe3a1169f6020408f7dfef4afc629635a

  • SHA256

    6462d610702fa004d9bda6c05c9300571e65c4625ffe35208eecd4226b28b310

  • SHA512

    26ec3a25ad46c5d466c5b87ef1a688b3cddd25efebd77a02cf8c1d7c0d7cb0f581d9094891d4ec236b099ffcb6819ea919eef8bc2307bb27929af72a77a75abf

  • SSDEEP

    12288:59TWzqNtOFpTovLnFmaHy9GBJ0wxCOZ8z9lz457oFFanmh4ZpQsJC:ji+NtOcZbS9rZlM5Q+mOLQsE

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/raud/get.php

Attributes
  • extension

    .agvv

  • offline_id

    IGjpno8dwAKJpBjbvlsxfyQXyNoBoo3dXUtMk6t1

  • payload_url

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

    http://zexeq.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. You can get and look video overview decrypt tool: https://we.tl/t-3OsGArf4HD 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: 0737JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

4.5

Botnet

75b38583a079a9212c1fa894fd1b945f

C2

https://steamcommunity.com/profiles/76561199520592470

https://t.me/motafan

Attributes
  • profile_id_v2

    75b38583a079a9212c1fa894fd1b945f

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/111.0

Targets

    • Target

      264386-buildexe.exe

    • Size

      724KB

    • MD5

      b69360e7d321c9ffa0271177d05b3f75

    • SHA1

      6e13876fe3a1169f6020408f7dfef4afc629635a

    • SHA256

      6462d610702fa004d9bda6c05c9300571e65c4625ffe35208eecd4226b28b310

    • SHA512

      26ec3a25ad46c5d466c5b87ef1a688b3cddd25efebd77a02cf8c1d7c0d7cb0f581d9094891d4ec236b099ffcb6819ea919eef8bc2307bb27929af72a77a75abf

    • SSDEEP

      12288:59TWzqNtOFpTovLnFmaHy9GBJ0wxCOZ8z9lz457oFFanmh4ZpQsJC:ji+NtOcZbS9rZlM5Q+mOLQsE

    • 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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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