General

  • Target

    545ec152a30ba2bb36e1925ec9b12db876773e9610ded196e63e2464723ff4a1

  • Size

    792KB

  • Sample

    230724-pr17nadb73

  • MD5

    bd130e0553c9fd070e0a174db55ca59b

  • SHA1

    302c040ea130757b0015c37103ff06d1dafe81d3

  • SHA256

    545ec152a30ba2bb36e1925ec9b12db876773e9610ded196e63e2464723ff4a1

  • SHA512

    d8a4ceb5e878d84a30b072c5821a002fcbbd1bc61285fc5cce576e6c61f10b8330266fdc9c5743aa8adc911adfe6cc17021931a6e3a9870255dc1764e03febd9

  • SSDEEP

    12288:+G1KOss66w1kGVy3B78fnFEjHdITWL7cJznt0VCFiUyktp2:L936hkx8fnFEDdYWLAd3n2

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .kizu

  • offline_id

    NGHsYuVPwlgoEkG3ENtueNmXtFHSWod7fYayU9t1

  • 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-lOjoPPuBzw 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: 0747JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

4.8

Botnet

https://t.me/sundayevent

C2

https://t.me/sundayevent

https://steamcommunity.com/profiles/76561198982268531

Attributes
  • profile_id_v2

    https://t.me/sundayevent

  • user_agent

    Mozilla/5.0 (X11; Linux 3.5.4-1-ARCH i686; es) KHTML/4.9.1 (like Gecko) Konqueror/4.9

Targets

    • Target

      545ec152a30ba2bb36e1925ec9b12db876773e9610ded196e63e2464723ff4a1

    • Size

      792KB

    • MD5

      bd130e0553c9fd070e0a174db55ca59b

    • SHA1

      302c040ea130757b0015c37103ff06d1dafe81d3

    • SHA256

      545ec152a30ba2bb36e1925ec9b12db876773e9610ded196e63e2464723ff4a1

    • SHA512

      d8a4ceb5e878d84a30b072c5821a002fcbbd1bc61285fc5cce576e6c61f10b8330266fdc9c5743aa8adc911adfe6cc17021931a6e3a9870255dc1764e03febd9

    • SSDEEP

      12288:+G1KOss66w1kGVy3B78fnFEjHdITWL7cJznt0VCFiUyktp2:L936hkx8fnFEDdYWLAd3n2

    • 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 v15

Tasks