General

  • Target

    2f464235afddb71037a81adbcb7c78a2a162026f6b76e5582d71f0d18edb484d

  • Size

    729KB

  • Sample

    221011-jw15kaddbn

  • MD5

    ad499a24974aff27e4204574bca7b05f

  • SHA1

    2b8246aed7668f94d61ef52a52697981db97ad5f

  • SHA256

    2f464235afddb71037a81adbcb7c78a2a162026f6b76e5582d71f0d18edb484d

  • SHA512

    bd10a3499bca8cf71a2f316d4c0f8b84f0a19a4b6f8d58b4b6d94aa9025ef1fda96ffcd4afb4b63fb1fb0b12182e53834bdbc7cd9b2ede5d07fcaddc3286c66e

  • SSDEEP

    12288:KNOSzsCEs2tw3K4NZmyt7q4U8V5PyJQNDFjxp0X+aZVaySlRhmk1Zcg/hGvsV:KN0CEXw3K4jmq7nZLhFVp0O6VlSlKQ

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .tohj

  • 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: 0574Jhyjd

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

      2f464235afddb71037a81adbcb7c78a2a162026f6b76e5582d71f0d18edb484d

    • Size

      729KB

    • MD5

      ad499a24974aff27e4204574bca7b05f

    • SHA1

      2b8246aed7668f94d61ef52a52697981db97ad5f

    • SHA256

      2f464235afddb71037a81adbcb7c78a2a162026f6b76e5582d71f0d18edb484d

    • SHA512

      bd10a3499bca8cf71a2f316d4c0f8b84f0a19a4b6f8d58b4b6d94aa9025ef1fda96ffcd4afb4b63fb1fb0b12182e53834bdbc7cd9b2ede5d07fcaddc3286c66e

    • SSDEEP

      12288:KNOSzsCEs2tw3K4NZmyt7q4U8V5PyJQNDFjxp0X+aZVaySlRhmk1Zcg/hGvsV:KN0CEXw3K4jmq7nZLhFVp0O6VlSlKQ

    • 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