General

  • Target

    file.exe

  • Size

    1.7MB

  • Sample

    241120-qznrzaxnhz

  • MD5

    1fb763b01e1ffa3ab02b53ce4b2a88fd

  • SHA1

    881d6869788ced3bb3be507abea78f569af3775e

  • SHA256

    f98936eaa24f4c5b0339ad375b53e45e505c9c65cef4480cff417157252f77b4

  • SHA512

    c714e1043a8a0121ff30ba80a19fd11a61dab6494f760474e433487a21eeec8fcf5af56b3514e00723d348538920d94ff57edd8ba7b75308ae490c4bc4c54023

  • SSDEEP

    49152:o4nWwEYIzjyQPfn/n6+iAUtcyZX8kpTelD48i:oWkqif/n6DADAskTSDRi

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

      1fb763b01e1ffa3ab02b53ce4b2a88fd

    • SHA1

      881d6869788ced3bb3be507abea78f569af3775e

    • SHA256

      f98936eaa24f4c5b0339ad375b53e45e505c9c65cef4480cff417157252f77b4

    • SHA512

      c714e1043a8a0121ff30ba80a19fd11a61dab6494f760474e433487a21eeec8fcf5af56b3514e00723d348538920d94ff57edd8ba7b75308ae490c4bc4c54023

    • SSDEEP

      49152:o4nWwEYIzjyQPfn/n6+iAUtcyZX8kpTelD48i:oWkqif/n6DADAskTSDRi

    • Amadey

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

    • Amadey family

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Asyncrat 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

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Smokeloader family

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Async RAT payload

    • 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.

    • Enumerates processes with tasklist

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks