General

  • Target

    random.exe

  • Size

    1.8MB

  • Sample

    250208-sx28patqgk

  • MD5

    5b7618b4200c4288b830a4c0bbe23348

  • SHA1

    5676c7ed0d9203a7ffe9197bae7da5f85c56106b

  • SHA256

    9f7d849e26b45382639da7c45256fbe0963ce63554bb9c8b20dfa9216c9947bd

  • SHA512

    a914c364f053aafb85d4fdaefa9d046a498713d4bf78bf4d0bdb286cc921f6d5160d5a1a7a4f101b46aac4e67e295e7a1a954e9573d95457df7b37a4ab21fd78

  • SSDEEP

    49152:8/08HRt4iYyXvvCLN8ZnysbKFHiY8VnVfut:8/0C+9yyN8EfFCZVc

Malware Config

Extracted

Family

amadey

Version

4.41

Botnet

fed3aa

C2

http://185.215.113.16

Attributes
  • install_dir

    44111dbc49

  • install_file

    axplong.exe

  • strings_key

    8d0ad6945b1a30a186ec2d30be6db0b5

  • url_paths

    /Jo89Ku7d/index.php

rc4.plain

Extracted

Family

stealc

Botnet

reno

C2

http://185.215.113.115

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://modernakdventure.cyou/api

Targets

    • Target

      random.exe

    • Size

      1.8MB

    • MD5

      5b7618b4200c4288b830a4c0bbe23348

    • SHA1

      5676c7ed0d9203a7ffe9197bae7da5f85c56106b

    • SHA256

      9f7d849e26b45382639da7c45256fbe0963ce63554bb9c8b20dfa9216c9947bd

    • SHA512

      a914c364f053aafb85d4fdaefa9d046a498713d4bf78bf4d0bdb286cc921f6d5160d5a1a7a4f101b46aac4e67e295e7a1a954e9573d95457df7b37a4ab21fd78

    • SSDEEP

      49152:8/08HRt4iYyXvvCLN8ZnysbKFHiY8VnVfut:8/0C+9yyN8EfFCZVc

    • Amadey

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

    • Amadey family

    • Detect Vidar Stealer

    • 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

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

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

    • Downloads MZ/PE file

    • Sets service image path in registry

    • Uses browser remote debugging

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

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • 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.

    • 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 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.

    • 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.

    • Drops file in System32 directory

    • 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