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General

  • Target

    ef896c2e6c8e532284e1e19decbca258570e72a08a31f407df99cf228a343303

  • Size

    806KB

  • Sample

    231014-m1k6paeg86

  • MD5

    dd8310469ceafb12c085f3627f22d56a

  • SHA1

    f0c74f58a78fd721467cd1abc0b1e716e91c836e

  • SHA256

    ef896c2e6c8e532284e1e19decbca258570e72a08a31f407df99cf228a343303

  • SHA512

    289e9b37efde6bb332c752bb3a34b1075c2cd792aacf91ca2024111111b55e35c6493ad77364fdea0809c211bd4400cb61621e03e8aa988f2da802ff20396cae

  • SSDEEP

    12288:uUlpMroe4ioF6SVwxlRqeImN/3oRgjdVjr8dKEIitmZZLt1:uUUL9+JVPel/3oq3jwmi6R1

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .oopl

  • offline_id

    dhL6XvokZotUzL67Na5WfNIBufODsob7eYc3mzt1

  • 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-XA1LckrLRP 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: 0782Okhu

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

      ef896c2e6c8e532284e1e19decbca258570e72a08a31f407df99cf228a343303

    • Size

      806KB

    • MD5

      dd8310469ceafb12c085f3627f22d56a

    • SHA1

      f0c74f58a78fd721467cd1abc0b1e716e91c836e

    • SHA256

      ef896c2e6c8e532284e1e19decbca258570e72a08a31f407df99cf228a343303

    • SHA512

      289e9b37efde6bb332c752bb3a34b1075c2cd792aacf91ca2024111111b55e35c6493ad77364fdea0809c211bd4400cb61621e03e8aa988f2da802ff20396cae

    • SSDEEP

      12288:uUlpMroe4ioF6SVwxlRqeImN/3oRgjdVjr8dKEIitmZZLt1:uUUL9+JVPel/3oq3jwmi6R1

    • 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