General

  • Target

    8ed92a1964a27552705926c929118b576553585874cc19aa4214ee7e810d3b5d

  • Size

    171KB

  • Sample

    240313-fkaxfsdc3w

  • MD5

    762c43c78ccf4d3b35574149b834f7a7

  • SHA1

    b024585ab11a867a05b97f4de4336c14bb4e54e5

  • SHA256

    8ed92a1964a27552705926c929118b576553585874cc19aa4214ee7e810d3b5d

  • SHA512

    83d45a68b4c2a4c9b4ac55a5aa1f66e5dfd84328535f5ada2830592cc7745b6ff39aa57aefe715c9bebab552f569fce1216b8689a85cb3be3d8661e6b2a1f827

  • SSDEEP

    1536:fwXXLANewOH0Tnw7NVPU18mjkV41JYzHXPxCq9ySC8AW4pNhzjDFS1jRJTNg7A+:fExwOHJN6BjkyQ3P6z8AXBzjDI1ak+

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2022

C2

http://trad-einmyus.com/index.php

http://tradein-myus.com/index.php

http://trade-inmyus.com/index.php

rc4.i32
rc4.i32

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .wisz

  • offline_id

    4p0Nzrg1q0ND5of5Gtp2UBjthSXuE8VxnMrd4vt1

  • payload_url

    http://sdfjhuz.com/dl/build2.exe

    http://sajdfue.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. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/a832401adcd58098c699f768ffea4f1720240305114308/7e601a Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. 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: 0853PsawqS

rsa_pubkey.plain

Extracted

Family

vidar

Version

8.2

Botnet

7462cf1e49890509e46ee7ab1b511527

C2

https://steamcommunity.com/profiles/76561199651834633

https://t.me/raf6ik

Attributes
  • profile_id_v2

    7462cf1e49890509e46ee7ab1b511527

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; rv:109.0) Gecko/20100101 Firefox/115.0

Extracted

Family

amadey

Version

4.17

C2

http://185.215.113.32

Attributes
  • install_dir

    00c07260dc

  • install_file

    explorgu.exe

  • strings_key

    461809bd97c251ba0c0c8450c7055f1d

  • url_paths

    /yandex/index.php

rc4.plain

Targets

    • Target

      8ed92a1964a27552705926c929118b576553585874cc19aa4214ee7e810d3b5d

    • Size

      171KB

    • MD5

      762c43c78ccf4d3b35574149b834f7a7

    • SHA1

      b024585ab11a867a05b97f4de4336c14bb4e54e5

    • SHA256

      8ed92a1964a27552705926c929118b576553585874cc19aa4214ee7e810d3b5d

    • SHA512

      83d45a68b4c2a4c9b4ac55a5aa1f66e5dfd84328535f5ada2830592cc7745b6ff39aa57aefe715c9bebab552f569fce1216b8689a85cb3be3d8661e6b2a1f827

    • SSDEEP

      1536:fwXXLANewOH0Tnw7NVPU18mjkV41JYzHXPxCq9ySC8AW4pNhzjDFS1jRJTNg7A+:fExwOHJN6BjkyQ3P6z8AXBzjDI1ak+

    • Amadey

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

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Detect Vidar Stealer

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • UAC bypass

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Deletes itself

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Modifies file permissions

    • Uses the VBS compiler for execution

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • 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 NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks