General

  • Target

    446adb7ebf1e4a7f145ad2254502fdc6b667e2adcf162ba21a4a91da35216871

  • Size

    783KB

  • Sample

    230326-wlcenshd97

  • MD5

    27781c995d0c3bbebf4bf85e03de610b

  • SHA1

    0e107c742a019551dec6f22717a2e77488695365

  • SHA256

    446adb7ebf1e4a7f145ad2254502fdc6b667e2adcf162ba21a4a91da35216871

  • SHA512

    0a83b88c15bbcb4cd4ebe32795cf8e58ca72c308d1de8f957bac4c936c9098d0b93d05d52451bf86b4d9be72405c596067132c4e3be6dbc3990a905a762bdf9b

  • SSDEEP

    12288:fX2/QyowpSgxZhs66A4Wwf7M/n7kQwLhB24igEWAxUWbnO7xEU:aQyow/xZhCAhw4/MnUTWiUMaJ

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

      446adb7ebf1e4a7f145ad2254502fdc6b667e2adcf162ba21a4a91da35216871

    • Size

      783KB

    • MD5

      27781c995d0c3bbebf4bf85e03de610b

    • SHA1

      0e107c742a019551dec6f22717a2e77488695365

    • SHA256

      446adb7ebf1e4a7f145ad2254502fdc6b667e2adcf162ba21a4a91da35216871

    • SHA512

      0a83b88c15bbcb4cd4ebe32795cf8e58ca72c308d1de8f957bac4c936c9098d0b93d05d52451bf86b4d9be72405c596067132c4e3be6dbc3990a905a762bdf9b

    • SSDEEP

      12288:fX2/QyowpSgxZhs66A4Wwf7M/n7kQwLhB24igEWAxUWbnO7xEU:aQyow/xZhCAhw4/MnUTWiUMaJ

    • 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