General

  • Target

    f91f8471ea8927fa0277bdf437acc54d1410b5204b0ba9e1f41197652f7f792c

  • Size

    766KB

  • Sample

    230327-wzyj3agg41

  • MD5

    63cf2d7be46fa1befc1c0b4674bac744

  • SHA1

    16959689e2f1727fe2b6e304ff5141ae6c2b6073

  • SHA256

    f91f8471ea8927fa0277bdf437acc54d1410b5204b0ba9e1f41197652f7f792c

  • SHA512

    041a92684948c713bafaa379a1bcc3e4b30eeae34c53f1f6ec79e3430927fbc37b143637f7e28c0b02169e11253e498299196f3c5626a1309ccd3dafac7af0da

  • SSDEEP

    12288:p5v8za8aVrEQ1M1z/iAmwXS/D/iHf2bhOO0aPvxucN3mqAUWdDPi53HhGfcS:/Og7M1zKPZD/i/8zPv/NzWdzUHhB

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test2/get.php

Attributes
  • extension

    .jywd

  • offline_id

    MEMHlobHgXqvmTWaMsLcwGZhDOd00bblO1yevst1

  • payload_url

    http://uaery.top/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-fkW8qLaCVQ 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: 0675JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

3.1

Botnet

00d92484c9b27bc8482a2cc94cacc508

C2

https://steamcommunity.com/profiles/76561199472266392

https://t.me/tabootalks

http://135.181.26.183:80

Attributes
  • profile_id_v2

    00d92484c9b27bc8482a2cc94cacc508

  • user_agent

    Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79

Targets

    • Target

      f91f8471ea8927fa0277bdf437acc54d1410b5204b0ba9e1f41197652f7f792c

    • Size

      766KB

    • MD5

      63cf2d7be46fa1befc1c0b4674bac744

    • SHA1

      16959689e2f1727fe2b6e304ff5141ae6c2b6073

    • SHA256

      f91f8471ea8927fa0277bdf437acc54d1410b5204b0ba9e1f41197652f7f792c

    • SHA512

      041a92684948c713bafaa379a1bcc3e4b30eeae34c53f1f6ec79e3430927fbc37b143637f7e28c0b02169e11253e498299196f3c5626a1309ccd3dafac7af0da

    • SSDEEP

      12288:p5v8za8aVrEQ1M1z/iAmwXS/D/iHf2bhOO0aPvxucN3mqAUWdDPi53HhGfcS:/Og7M1zKPZD/i/8zPv/NzWdzUHhB

    • 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

    • 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