General

  • Target

    file.exe

  • Size

    1.7MB

  • Sample

    241202-vlthhstkes

  • MD5

    99dbc3dc8a5a570531e619921a3da5a4

  • SHA1

    955d1394d9074948e6f2a4ba90d316930580d9b9

  • SHA256

    f9f42f3b2bf9665693451da26453f988ab5f0c636929bc5e39203e24e65e9b92

  • SHA512

    36da7b98b3ac918f33498fc3f46b0e1c0790580b223ad1600c53dfba8e9078a69984b65f259d20e164ed34d0b7b386f2983558d84069d007b8858ec63c242e03

  • SSDEEP

    49152:ysR/aPxLFEKpzqkSxuyyT5HVaa58OsVa8tC:ysRHCqBxup58OsVa0C

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

Targets

    • Target

      file.exe

    • Size

      1.7MB

    • MD5

      99dbc3dc8a5a570531e619921a3da5a4

    • SHA1

      955d1394d9074948e6f2a4ba90d316930580d9b9

    • SHA256

      f9f42f3b2bf9665693451da26453f988ab5f0c636929bc5e39203e24e65e9b92

    • SHA512

      36da7b98b3ac918f33498fc3f46b0e1c0790580b223ad1600c53dfba8e9078a69984b65f259d20e164ed34d0b7b386f2983558d84069d007b8858ec63c242e03

    • SSDEEP

      49152:ysR/aPxLFEKpzqkSxuyyT5HVaa58OsVa8tC:ysRHCqBxup58OsVa0C

    • 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

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

    • 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.

    • 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.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • 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