General

  • Target

    be93850f9ee20b454212d48831d83bbf164f4916beb9cb4c57bccdda5df404db

  • Size

    656KB

  • Sample

    230106-zjn78sfc9s

  • MD5

    1b578e77e86afa6059c9b04872100d01

  • SHA1

    b51e0886a77269eb3a57439c5e0bbf284acf4cad

  • SHA256

    043d116aec43d6e433e618b18b92572fd0df5265978b70d5b623e36bb737afd3

  • SHA512

    0f67db3d94ab3152127020699ae0a3a4ad3162302591cdddf5e9f717864579de0752a439daec08bf34dc69a05b69feffcd876f008e314b020144dd29e535b8af

  • SSDEEP

    12288:3Om+KYO/POweB9+v3ONo+5SRIFQ0FgGtd42Zh8SulfwFcYEcBO7UjB8oqeNaClfE:+62weB9u3b+5oIFfU2ZyS+fqJEIOcDZE

Malware Config

Extracted

Family

djvu

C2

http://ex3mall.com/test1/get.php

Attributes
  • extension

    .znsm

  • offline_id

    bE95c2N1x4fARf4W3qmFCjkKPwfFkQaU9NpNBMt1

  • payload_url

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

    http://ex3mall.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-OKSOfVy04R 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: 0623Sduef

rsa_pubkey.plain

Extracted

Family

vidar

Version

1.8

Botnet

19

C2

https://t.me/year2023start

https://steamcommunity.com/profiles/76561199467421923

Attributes
  • profile_id

    19

Targets

    • Target

      be93850f9ee20b454212d48831d83bbf164f4916beb9cb4c57bccdda5df404db

    • Size

      729KB

    • MD5

      4811c289bbbdef5dbed5940d08c72a84

    • SHA1

      efd8def08f9960f1b495c861d78abfc175b19b8a

    • SHA256

      be93850f9ee20b454212d48831d83bbf164f4916beb9cb4c57bccdda5df404db

    • SHA512

      b7989b567abb7e0a9b6854c372088f39d3b04ecf9053d7a7e81c0c7b6b11ff3ca832f11e62bd92c5b254e9ed64e72fb2d17721e2d6ca5c8ed35165e062fb9faa

    • SSDEEP

      12288:b9P/LgrHweBn+v3ONgS5IRoFQ0JgGt7c2Zh88uxfwxcYEYBO7UbB8oSeNaSZy:blqHweBnu31S5KoFXi2Zy8Qf4JEEOGd

    • 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