General

  • Target

    file.exe

  • Size

    1.7MB

  • Sample

    241123-xhgews1jdv

  • MD5

    6af05407143697f6c49bd94e5903f73a

  • SHA1

    003809f7aa6cb6ab5bf4ddb22dc659f22f0879ef

  • SHA256

    e4853246b4c0b4d13aa84e929cf4313961f176e893a8c1c29720a1eb7f68c5a7

  • SHA512

    42447c96152cfd43f6ba7d7533edc62e10e66eab6030c8914bcf1af64d6980b29d1ac6a960fb6a1e3699ce68a8fad92684f2c3ebe11009f911d2b98e49f61b5e

  • SSDEEP

    49152:12+LhJrTVTCyrc3j2x4uDgwcTXXZHa6hS8R+:11hrCyrcxfCaS

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

      6af05407143697f6c49bd94e5903f73a

    • SHA1

      003809f7aa6cb6ab5bf4ddb22dc659f22f0879ef

    • SHA256

      e4853246b4c0b4d13aa84e929cf4313961f176e893a8c1c29720a1eb7f68c5a7

    • SHA512

      42447c96152cfd43f6ba7d7533edc62e10e66eab6030c8914bcf1af64d6980b29d1ac6a960fb6a1e3699ce68a8fad92684f2c3ebe11009f911d2b98e49f61b5e

    • SSDEEP

      49152:12+LhJrTVTCyrc3j2x4uDgwcTXXZHa6hS8R+:11hrCyrcxfCaS

    • 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.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks