General

  • Target

    file.exe

  • Size

    1.7MB

  • Sample

    241128-3nc8bavmb1

  • MD5

    37636f97d17a353df808d9db91e75bb6

  • SHA1

    b5553325110e3099dccdb14656550331406224c5

  • SHA256

    496357be019ded9cae676d6a12a9a2b83402c35db4ce8fe1cff0df05f395baa2

  • SHA512

    cb02dcf3e64c368b26897065418d18facec44cb335151492017d560b47549aa99199f52e8e2562abbc5c32ffc5b0f284cab1c74cded60ac516566aeca9e23eec

  • SSDEEP

    24576:bvXY+jR6cqeH8gYjewE+CXwUU1mefs9/qX5c+0hbckpeSvE8vqYASpuxeqT1J7I:b0leHajewaX9qhk/12M/uey1RI

Malware Config

Extracted

Family

stealc

Botnet

drum

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

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

lumma

C2

https://tail-cease.cyou/api

Targets

    • Target

      file.exe

    • Size

      1.7MB

    • MD5

      37636f97d17a353df808d9db91e75bb6

    • SHA1

      b5553325110e3099dccdb14656550331406224c5

    • SHA256

      496357be019ded9cae676d6a12a9a2b83402c35db4ce8fe1cff0df05f395baa2

    • SHA512

      cb02dcf3e64c368b26897065418d18facec44cb335151492017d560b47549aa99199f52e8e2562abbc5c32ffc5b0f284cab1c74cded60ac516566aeca9e23eec

    • SSDEEP

      24576:bvXY+jR6cqeH8gYjewE+CXwUU1mefs9/qX5c+0hbckpeSvE8vqYASpuxeqT1J7I:b0leHajewaX9qhk/12M/uey1RI

    • 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

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Enumerates VirtualBox registry keys

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

    • 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.

    • Drops startup file

    • 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.

    • 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.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks