General

  • Target

    a9c957fcae042f43e5b80f9fa373073eaa75ff7f7195a412a25aeaab042cb08c

  • Size

    733KB

  • Sample

    231011-vadmxscd25

  • MD5

    fe346c873e1e18c64bc89e26c1e181fc

  • SHA1

    8030d560bc7d5576a23b5bb5b254e485299272bd

  • SHA256

    a9c957fcae042f43e5b80f9fa373073eaa75ff7f7195a412a25aeaab042cb08c

  • SHA512

    86e51c9a509b8d07907090b571bbdd06db31d1627227701e0c6f21127eadf937fc37b26893220467731e217309e15580c36c780bc8d7084d07c398180681fe13

  • SSDEEP

    12288:Bf1nRBhRpGPMQHcOi6LzNKBxWIAARH81VMeYJ/QSK9zD6PvrvtN4mZugwqJyzOnX:Bf1n3hjSJH5iMzNyxeARcYeiK9z+71NZ

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .azhi

  • offline_id

    GQ9DjFmWFDqpsyzsOnaxE1Xr4MPL1dG4vPfPDNt1

  • 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-e5pgPH03fe 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: 0793

rsa_pubkey.plain

Extracted

Family

vidar

Version

6

Botnet

d37c48c18c73cc0e155c7e1dfde06db9

C2

https://steamcommunity.com/profiles/76561199560322242

https://t.me/cahalgo

Attributes
  • profile_id_v2

    d37c48c18c73cc0e155c7e1dfde06db9

  • user_agent

    Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/111.0 uacq

Targets

    • Target

      a9c957fcae042f43e5b80f9fa373073eaa75ff7f7195a412a25aeaab042cb08c

    • Size

      733KB

    • MD5

      fe346c873e1e18c64bc89e26c1e181fc

    • SHA1

      8030d560bc7d5576a23b5bb5b254e485299272bd

    • SHA256

      a9c957fcae042f43e5b80f9fa373073eaa75ff7f7195a412a25aeaab042cb08c

    • SHA512

      86e51c9a509b8d07907090b571bbdd06db31d1627227701e0c6f21127eadf937fc37b26893220467731e217309e15580c36c780bc8d7084d07c398180681fe13

    • SSDEEP

      12288:Bf1nRBhRpGPMQHcOi6LzNKBxWIAARH81VMeYJ/QSK9zD6PvrvtN4mZugwqJyzOnX:Bf1n3hjSJH5iMzNyxeARcYeiK9z+71NZ

    • 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

    • 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