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General

  • Target

    5b6b782f9de3115bcba5592ae8de3f69c349c7b9c52b63d5edff6691a5817807

  • Size

    294KB

  • Sample

    221008-e56deseah9

  • MD5

    4167826d2a9574ab9fca45f85f5fd6a0

  • SHA1

    49a1aa342bd5b9a095f08742612f4ea5ae7e8c6f

  • SHA256

    5b6b782f9de3115bcba5592ae8de3f69c349c7b9c52b63d5edff6691a5817807

  • SHA512

    87f69337094ec586deaf34bc9c6a444f57de5fe7804a9a8f02dec9dc1caead2c39c6c4996608da0ef90936ca903b4258ec277565a7ff854d4b7b1b785f19cfae

  • SSDEEP

    3072:6Xh84aFiZsmLj7fEXMw5v9Mo3V6v3ugHsE5OB7cKlQNlGi6VggjcGkNIVqIxM/hv:aS4j3s936vM7EvC7ITsqeewVf6XO

Malware Config

Extracted

Family

djvu

C2

http://winnlinne.com/lancer/get.php

Attributes
  • extension

    .towz

  • offline_id

    SSHsHMHGmSIhrz50VnIxLJJX15osxEQY6iXedXt1

  • payload_url

    http://rgyui.top/dl/build2.exe

    http://winnlinne.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-Kbx8mJatqN 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: 0577Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

54.9

Botnet

517

C2

https://t.me/larsenup

https://ioc.exchange/@zebra54

Attributes
  • profile_id

    517

Targets

    • Target

      5b6b782f9de3115bcba5592ae8de3f69c349c7b9c52b63d5edff6691a5817807

    • Size

      294KB

    • MD5

      4167826d2a9574ab9fca45f85f5fd6a0

    • SHA1

      49a1aa342bd5b9a095f08742612f4ea5ae7e8c6f

    • SHA256

      5b6b782f9de3115bcba5592ae8de3f69c349c7b9c52b63d5edff6691a5817807

    • SHA512

      87f69337094ec586deaf34bc9c6a444f57de5fe7804a9a8f02dec9dc1caead2c39c6c4996608da0ef90936ca903b4258ec277565a7ff854d4b7b1b785f19cfae

    • SSDEEP

      3072:6Xh84aFiZsmLj7fEXMw5v9Mo3V6v3ugHsE5OB7cKlQNlGi6VggjcGkNIVqIxM/hv:aS4j3s936vM7EvC7ITsqeewVf6XO

    • Detected Djvu ransomware

    • Detects Smokeloader packer

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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 Microsoft Outlook profiles

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • 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