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General

  • Target

    2991d63cd584ca1fa3e3a629c1cad9fc1c8c3f63fdb4743f9cc8de6102940810

  • Size

    785KB

  • Sample

    221004-sm1xwabcf2

  • MD5

    b1cf7ff591bffbb3b4ca15cc47c8ef94

  • SHA1

    91fc9ebd48e02969dc0987b025b70c705abc9dc9

  • SHA256

    2991d63cd584ca1fa3e3a629c1cad9fc1c8c3f63fdb4743f9cc8de6102940810

  • SHA512

    a2fab0fc3e6ce4da0792069cb1ce433fa1045b4e023e4417c1f25cabcd49d93d386fa1d8b917365b20ed0addb2e5ce3a0f8adfde9b619ff5b27d8e4f67ea487d

  • SSDEEP

    12288:TeKhi+T+35SU9IX8utLEGMI+FUQHflElSPRPRSuSP1iwEI6bAdmoyI/MgZunnl3P:TWjSUuXv5OfasPRPU1ikSZorylf

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .adlg

  • offline_id

    z8lhl4oForVEc7gy9Ra8rSqjYMl3xiFRuIW4not1

  • 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-g28rVcqA58 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: 0570Jhyjd

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

      2991d63cd584ca1fa3e3a629c1cad9fc1c8c3f63fdb4743f9cc8de6102940810

    • Size

      785KB

    • MD5

      b1cf7ff591bffbb3b4ca15cc47c8ef94

    • SHA1

      91fc9ebd48e02969dc0987b025b70c705abc9dc9

    • SHA256

      2991d63cd584ca1fa3e3a629c1cad9fc1c8c3f63fdb4743f9cc8de6102940810

    • SHA512

      a2fab0fc3e6ce4da0792069cb1ce433fa1045b4e023e4417c1f25cabcd49d93d386fa1d8b917365b20ed0addb2e5ce3a0f8adfde9b619ff5b27d8e4f67ea487d

    • SSDEEP

      12288:TeKhi+T+35SU9IX8utLEGMI+FUQHflElSPRPRSuSP1iwEI6bAdmoyI/MgZunnl3P:TWjSUuXv5OfasPRPU1ikSZorylf

    • 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 v6

Tasks