General

  • Target

    file.exe

  • Size

    2.9MB

  • Sample

    241220-ts28kazneq

  • MD5

    903052dc4ec888f7f5bceb743304b9a2

  • SHA1

    9a915074586344f727528a5fc63b86b6083e291b

  • SHA256

    94892ae5c3bee71ad27491e1801b78af3789a15cacc1817de0a970854b841587

  • SHA512

    fec7879223493c6a05eabfdf1a0769bfacb480a53cf11d5681ad4f9f2694df3a69c7e66928b836ccd316a32beb60c7d56707b6c20283e26af010c8181b779cfa

  • SSDEEP

    49152:tjg19XLi+Kan8iuH0XVdZSsTHdrDquZtqcm0EkBUxOHx:tc197Ian8iuH0XVd0WdrGCBm0ViEx

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

Targets

    • Target

      file.exe

    • Size

      2.9MB

    • MD5

      903052dc4ec888f7f5bceb743304b9a2

    • SHA1

      9a915074586344f727528a5fc63b86b6083e291b

    • SHA256

      94892ae5c3bee71ad27491e1801b78af3789a15cacc1817de0a970854b841587

    • SHA512

      fec7879223493c6a05eabfdf1a0769bfacb480a53cf11d5681ad4f9f2694df3a69c7e66928b836ccd316a32beb60c7d56707b6c20283e26af010c8181b779cfa

    • SSDEEP

      49152:tjg19XLi+Kan8iuH0XVdZSsTHdrDquZtqcm0EkBUxOHx:tc197Ian8iuH0XVd0WdrGCBm0ViEx

    • 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

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar 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 to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Downloads MZ/PE file

    • 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

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Windows security modification

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • 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