General

  • Target

    0d73e8aa7ec50753c191ea8ec28ca6e726c2d0246b8c8aa7e7e91bbe275cfc2c

  • Size

    6.9MB

  • Sample

    241219-skz8kavjhw

  • MD5

    1f5c25503402f436f0d752b9e3b86fdd

  • SHA1

    ba1469c11b2d6f5db52c4e362d31f076d37af680

  • SHA256

    0d73e8aa7ec50753c191ea8ec28ca6e726c2d0246b8c8aa7e7e91bbe275cfc2c

  • SHA512

    b423e999fe3276b9820331c261a6fc7bf099d619f3f990eeb3f6859e86370f4202cf743a0d9063ef827a14ccb3e4cc72ac0baf96fb54d8e5262ebd897865e330

  • SSDEEP

    196608:xgQSdVr3RyxoLCWj5sn5SElnBthIxQhAGQbahypEFlLzo:xRMrhyyun5bnBthINGQWg2f

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

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Targets

    • Target

      0d73e8aa7ec50753c191ea8ec28ca6e726c2d0246b8c8aa7e7e91bbe275cfc2c

    • Size

      6.9MB

    • MD5

      1f5c25503402f436f0d752b9e3b86fdd

    • SHA1

      ba1469c11b2d6f5db52c4e362d31f076d37af680

    • SHA256

      0d73e8aa7ec50753c191ea8ec28ca6e726c2d0246b8c8aa7e7e91bbe275cfc2c

    • SHA512

      b423e999fe3276b9820331c261a6fc7bf099d619f3f990eeb3f6859e86370f4202cf743a0d9063ef827a14ccb3e4cc72ac0baf96fb54d8e5262ebd897865e330

    • SSDEEP

      196608:xgQSdVr3RyxoLCWj5sn5SElnBthIxQhAGQbahypEFlLzo:xRMrhyyun5bnBthINGQWg2f

    • 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

    • Modifies Windows Defender Real-time Protection settings

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

    • Enumerates VirtualBox registry keys

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Downloads MZ/PE file

    • Sets service image path in registry

    • 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.

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • Boot or Logon Autostart Execution: Authentication Package

      Suspicious Windows Authentication Registry Modification.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks