General

  • Target

    7b7489c52969cc441976bb033c800a49d466c51683185e8897d92b1cfe6c4e30

  • Size

    723KB

  • Sample

    221019-b9awjaede3

  • MD5

    3f0243840b11cde6e42ed34b808bb702

  • SHA1

    04965eb2dd0928a26f660749733584675397a0f2

  • SHA256

    7b7489c52969cc441976bb033c800a49d466c51683185e8897d92b1cfe6c4e30

  • SHA512

    99a5a59000b8140e6274efc4906f9f07b7aa448d955b0ff82a6495ab828fe7f4eb0e8dbca7e3650ef00106be9fe8551c464009794db9a3fac044893cdcc273fc

  • SSDEEP

    12288:5CfqprkNNzuL1kiwCOSaJT5m8GcZQ6E3Z0kxf3eZzEOD8kf+bxO2soVjkS:5C8SewqoT5m8G43Axf3dKGbx4oVj

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .tuis

  • offline_id

    Uz66zEbmA32arcxwT81zZhkb23026oHz5iSp8qt1

  • 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-o7UXxOstmw 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: 0582Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

55

Botnet

517

C2

https://t.me/truewallets

https://mas.to/@zara99

http://116.203.10.3:80

Attributes
  • profile_id

    517

Targets

    • Target

      7b7489c52969cc441976bb033c800a49d466c51683185e8897d92b1cfe6c4e30

    • Size

      723KB

    • MD5

      3f0243840b11cde6e42ed34b808bb702

    • SHA1

      04965eb2dd0928a26f660749733584675397a0f2

    • SHA256

      7b7489c52969cc441976bb033c800a49d466c51683185e8897d92b1cfe6c4e30

    • SHA512

      99a5a59000b8140e6274efc4906f9f07b7aa448d955b0ff82a6495ab828fe7f4eb0e8dbca7e3650ef00106be9fe8551c464009794db9a3fac044893cdcc273fc

    • SSDEEP

      12288:5CfqprkNNzuL1kiwCOSaJT5m8GcZQ6E3Z0kxf3eZzEOD8kf+bxO2soVjkS:5C8SewqoT5m8G43Axf3dKGbx4oVj

    • 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

    • 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 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