Overview

overview

10

Static

static

3

writer.dll.exe

windows7-x64

10

writer.dll.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    writer.dll.exe

  • Size

    268KB

  • Sample

    230517-nlj6hseh24

  • MD5

    ba285fbc050e319860e70bc07dd50c3c

  • SHA1

    2ad031a44e81f889e2b7b98747cd2b178b36f556

  • SHA256

    3efc3f7e277654bc03da3b5244b665cae3a93d78c8d3e0f452f55102b7d7319a

  • SHA512

    b365ef69f69863b4cc759c32b158997dbafa85a491dba25325e8e3606a8097c6e0f31c04a12e62de92b071c1743d64da5a597e131c1402ac655432c4e1e719a5

  • SSDEEP

    6144:ZVesLZ0WNuvi4RlfqlNVg014CfR5Zzf3a:9OWNu3RpqlNVg0usz9/

Score
10/10
amadeydjvusmokeloadervidar379b0d0a9ef2b4ae960ec452f90e3e8b9dfa7ee730fa2f1efb5ed51dbbec22f5pub1backdoordiscoverypersistenceransomwarestealertrojan

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://potunulit.org/

http://hutnilior.net/

http://bulimu55t.net/

http://soryytlic4.net/

http://novanosa5org.org/

http://nuljjjnuli.org/

http://tolilolihul.net/

http://somatoka51hub.net/

http://hujukui3.net/

http://bukubuka1.net/

http://golilopaster.org/

http://newzelannd66.org/

http://otriluyttn.org/

http://toobussy.com/tmp/

http://wuc11.com/tmp/

http://ladogatur.ru/tmp/

http://kingpirate.ru/tmp/
rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family

djvu

C2

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

http://zexeq.com/lancer/get.php
Attributes
  • extension

    .xaro

  • offline_id

    uK3VnHYy6oibGbO8t2PDOMcT40gQoh5oUUCe2Lt1

  • 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-otP8Wlz4eh 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: 0709JOsie

rsa_pubkey.plain

Extracted

Family

amadey

Version

3.70

C2

77.73.134.27/n9kdjc3xSf/index.php

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

vidar

Version

3.9

Botnet

379b0d0a9ef2b4ae960ec452f90e3e8b

C2

https://steamcommunity.com/profiles/76561199263069598

https://t.me/cybehost
Attributes
  • profile_id_v2

    379b0d0a9ef2b4ae960ec452f90e3e8b

  • user_agent

    Mozilla/5.0 (compatible; Konqueror/3.5; Linux) KHTML/3.5.7 (like Gecko) (Debian)

Extracted

Family

vidar

Version

3.9

Botnet

9dfa7ee730fa2f1efb5ed51dbbec22f5

C2

https://steamcommunity.com/profiles/76561199263069598

https://t.me/cybehost
Attributes
  • profile_id_v2

    9dfa7ee730fa2f1efb5ed51dbbec22f5

  • user_agent

    Mozilla/5.0 (compatible; Konqueror/3.5; Linux) KHTML/3.5.7 (like Gecko) (Debian)

Targets

    • Target

      writer.dll.exe

    • Size

      268KB

    • MD5

      ba285fbc050e319860e70bc07dd50c3c

    • SHA1

      2ad031a44e81f889e2b7b98747cd2b178b36f556

    • SHA256

      3efc3f7e277654bc03da3b5244b665cae3a93d78c8d3e0f452f55102b7d7319a

    • SHA512

      b365ef69f69863b4cc759c32b158997dbafa85a491dba25325e8e3606a8097c6e0f31c04a12e62de92b071c1743d64da5a597e131c1402ac655432c4e1e719a5

    • SSDEEP

      6144:ZVesLZ0WNuvi4RlfqlNVg014CfR5Zzf3a:9OWNu3RpqlNVg0usz9/

    Score
    10/10
    smokeloaderbackdoortrojanamadeydjvuvidar379b0d0a9ef2b4ae960ec452f90e3e8b9dfa7ee730fa2f1efb5ed51dbbec22f5pub1discoverypersistenceransomwarestealer

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

      trojanamadey

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

      trojanbackdoorsmokeloader

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

      stealervidar

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Modifies file permissions

      discovery

    • Adds Run key to start application

      persistence

    • 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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks