General

  • Target

    file.exe

  • Size

    2.9MB

  • Sample

    241218-tj3gzavqhj

  • MD5

    17773f6ab422d27012d0f813eec77035

  • SHA1

    e148f243044c22dd5374d41d4d9c5ae066c454cf

  • SHA256

    34b764f92f6aa319f62bf730e82f02a914cda5c7d7fa665c20a8f2c5430acc4a

  • SHA512

    6e0f75cea50dd43eb019fa5eb66d7e92262b2a7fdc12ab872afbd6339c069856427ce0e7cfd86fcbf17943d7c180a15ce12a9799561330173f485cafaa4ace88

  • SSDEEP

    49152:j5i0B6cfbpQIZyuOO26+iiaSwVgQJwXBUdlOauf7w:jb6cflfSiXNOtRUxuT

Malware Config

Extracted

Family

amadey

Version

4.42

Botnet

9c9aa5

C2

http://185.215.113.43

Attributes
  • install_dir

    abc3bc1985

  • install_file

    skotes.exe

  • strings_key

    8a35cf2ea38c2817dba29a4b5b25dcf0

  • url_paths

    /Zu7JuNko/index.php

rc4.plain

Extracted

Family

lumma

Extracted

Family

cryptbot

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Targets

    • Target

      file.exe

    • Size

      2.9MB

    • MD5

      17773f6ab422d27012d0f813eec77035

    • SHA1

      e148f243044c22dd5374d41d4d9c5ae066c454cf

    • SHA256

      34b764f92f6aa319f62bf730e82f02a914cda5c7d7fa665c20a8f2c5430acc4a

    • SHA512

      6e0f75cea50dd43eb019fa5eb66d7e92262b2a7fdc12ab872afbd6339c069856427ce0e7cfd86fcbf17943d7c180a15ce12a9799561330173f485cafaa4ace88

    • SSDEEP

      49152:j5i0B6cfbpQIZyuOO26+iiaSwVgQJwXBUdlOauf7w:jb6cflfSiXNOtRUxuT

    • Amadey

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

    • Amadey family

    • CryptBot

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Cryptbot family

    • Lumma Stealer, LummaC

      Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

    • Lumma family

    • Modifies Windows Defender Real-time Protection settings

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Enumerates VirtualBox registry keys

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

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • 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 system executable filetype association

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Windows security modification

    • 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.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks