General

  • Target

    84a1665b38004e17470a6807ca3442538f7b2bec67d47f0e3f21e1f544d4d349

  • Size

    731KB

  • Sample

    230329-djq6yagb8t

  • MD5

    583902cac95890b80a0c3f43d6211abf

  • SHA1

    14f759f5c445bdf3564d590db2151464b1ec6211

  • SHA256

    84a1665b38004e17470a6807ca3442538f7b2bec67d47f0e3f21e1f544d4d349

  • SHA512

    2d84d051f24dad26b09905f31101cd5f9a1368f3eaa34f98dcdb2a1cd327c0dfa9fc652ed2af3afc8b27ad5d31be2fee3896669730b9c4c51877c6d21e10cdb0

  • SSDEEP

    12288:OCTtYFG9PmPUNWayCHCbDJ86Is5TJ0mw4sZ4MLmWGt8sXhfeXKFPPzen/DSiVT:RMuyUNWayKe8HsH/a/ZctEaBPzen/5d

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

3.2

Botnet

5df88deb5dde677ba658b77ad5f60248

C2

https://steamcommunity.com/profiles/76561199489580435

https://t.me/tabootalks

Attributes
  • profile_id_v2

    5df88deb5dde677ba658b77ad5f60248

  • 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

      84a1665b38004e17470a6807ca3442538f7b2bec67d47f0e3f21e1f544d4d349

    • Size

      731KB

    • MD5

      583902cac95890b80a0c3f43d6211abf

    • SHA1

      14f759f5c445bdf3564d590db2151464b1ec6211

    • SHA256

      84a1665b38004e17470a6807ca3442538f7b2bec67d47f0e3f21e1f544d4d349

    • SHA512

      2d84d051f24dad26b09905f31101cd5f9a1368f3eaa34f98dcdb2a1cd327c0dfa9fc652ed2af3afc8b27ad5d31be2fee3896669730b9c4c51877c6d21e10cdb0

    • SSDEEP

      12288:OCTtYFG9PmPUNWayCHCbDJ86Is5TJ0mw4sZ4MLmWGt8sXhfeXKFPPzen/DSiVT:RMuyUNWayKe8HsH/a/ZctEaBPzen/5d

    • 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