General

  • Target

    aadc5df9b60a87ade5c319c6723d16aa4401f531d89aaf4d8b3f0f3e1cf54551.exe

  • Size

    1.8MB

  • Sample

    241129-eetxpszjck

  • MD5

    50a4af673c3038f686865c6698427e13

  • SHA1

    587c30e231c7163741adc14582d5a4792f823722

  • SHA256

    aadc5df9b60a87ade5c319c6723d16aa4401f531d89aaf4d8b3f0f3e1cf54551

  • SHA512

    fe92fd5ba8c04638d03d4db073d1d34c3ece1181f3f5e3865745ec7143900073b87e8c82cc127bfd7f1176cb24cb4d5607e4eb6c8bf68b52943ec3b8392af188

  • SSDEEP

    49152:idXfSF0PLhbT4JKX7m6teFvYFI+Xb8PRDhO4IJJOmPF:SfSFILyJE7m6svY2+XYPRDhO4kJOmt

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

C2

https://preside-comforter.sbs

https://savvy-steereo.sbs

https://copper-replace.sbs

https://record-envyp.sbs

https://slam-whipp.sbs

https://wrench-creter.sbs

https://looky-marked.sbs

https://plastic-mitten.sbs

https://tail-cease.cyou

Extracted

Family

stealc

Botnet

drum

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Extracted

Family

lumma

C2

https://tail-cease.cyou/api

Targets

    • Target

      aadc5df9b60a87ade5c319c6723d16aa4401f531d89aaf4d8b3f0f3e1cf54551.exe

    • Size

      1.8MB

    • MD5

      50a4af673c3038f686865c6698427e13

    • SHA1

      587c30e231c7163741adc14582d5a4792f823722

    • SHA256

      aadc5df9b60a87ade5c319c6723d16aa4401f531d89aaf4d8b3f0f3e1cf54551

    • SHA512

      fe92fd5ba8c04638d03d4db073d1d34c3ece1181f3f5e3865745ec7143900073b87e8c82cc127bfd7f1176cb24cb4d5607e4eb6c8bf68b52943ec3b8392af188

    • SSDEEP

      49152:idXfSF0PLhbT4JKX7m6teFvYFI+Xb8PRDhO4IJJOmPF:SfSFILyJE7m6svY2+XYPRDhO4kJOmt

    • Amadey

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

    • Amadey 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

    • Enumerates VirtualBox registry keys

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

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Download via BitsAdmin

    • Downloads MZ/PE file

    • 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.

    • Drops startup file

    • 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

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • 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.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks