General

  • Target

    file.exe

  • Size

    1.7MB

  • Sample

    241123-zr5j7asmfj

  • MD5

    e64035d85c07c76968207961c636bafd

  • SHA1

    042119fffe8ee795bb0d0365ca326dd0adfc775f

  • SHA256

    504451eddf7c45ab86eb9253a2a669928d27a3e0c6bd9d03564ca6e2370076f4

  • SHA512

    97712f2770bffaae68ff31894961fb8c8a30300d8b706131e83b30f8f73350fbf821d8eaede0ac49f4e5b83d6394fd813c7b1daa70a7cef8402b642d390acdba

  • SSDEEP

    49152:rzSKrMtbWWUPPNOktOLuVecLwj5PTdWdeENnSHRJ:rm0RbOLuVlLMRTdWYENSH

Malware Config

Extracted

Family

stealc

Botnet

mars

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

Targets

    • Target

      file.exe

    • Size

      1.7MB

    • MD5

      e64035d85c07c76968207961c636bafd

    • SHA1

      042119fffe8ee795bb0d0365ca326dd0adfc775f

    • SHA256

      504451eddf7c45ab86eb9253a2a669928d27a3e0c6bd9d03564ca6e2370076f4

    • SHA512

      97712f2770bffaae68ff31894961fb8c8a30300d8b706131e83b30f8f73350fbf821d8eaede0ac49f4e5b83d6394fd813c7b1daa70a7cef8402b642d390acdba

    • SSDEEP

      49152:rzSKrMtbWWUPPNOktOLuVecLwj5PTdWdeENnSHRJ:rm0RbOLuVlLMRTdWYENSH

    • Amadey

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

    • Amadey family

    • CryptBot

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Cryptbot family

    • Detects CryptBot payload

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Modifies Windows Defender Real-time Protection settings

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • 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.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks