General

  • Target

    file.exe

  • Size

    1.8MB

  • Sample

    241122-pck7wswncp

  • MD5

    78d4dee0280d6956a51b9273f0ad737d

  • SHA1

    2ef2fa793744883d76fa5bae923921bc9c30adb6

  • SHA256

    0303ddb89a4883dd612b2781fe062bdf4492883aa54955b9bc022d4565ed51ca

  • SHA512

    1d8c2603530a5531826e268127b6b2707c616caaa12c92d34f9346ca1cb813a5f778f2842db39e95d51727aaca6bc80e784dae399937df95de79b72b302ab847

  • SSDEEP

    49152:vm64JoOTly8EdAP7JBYwPw4MinwKfMHCTkubyh39r5:u6oFlcAP78wPw4MmBdJbyh39r5

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

xworm

C2

87.120.112.33:8398

Attributes
  • Install_directory

    %LocalAppData%

  • install_file

    svchost.exe

  • telegram

    https://api.telegram.org/bot6673004050:AAEcDfPnnGAswDvyrn9-bkOySVSnbPqLnBU/sendMessage?chat_id=1470436579

Extracted

Family

stealc

Botnet

mars

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Targets

    • Target

      file.exe

    • Size

      1.8MB

    • MD5

      78d4dee0280d6956a51b9273f0ad737d

    • SHA1

      2ef2fa793744883d76fa5bae923921bc9c30adb6

    • SHA256

      0303ddb89a4883dd612b2781fe062bdf4492883aa54955b9bc022d4565ed51ca

    • SHA512

      1d8c2603530a5531826e268127b6b2707c616caaa12c92d34f9346ca1cb813a5f778f2842db39e95d51727aaca6bc80e784dae399937df95de79b72b302ab847

    • SSDEEP

      49152:vm64JoOTly8EdAP7JBYwPw4MinwKfMHCTkubyh39r5:u6oFlcAP78wPw4MmBdJbyh39r5

    • 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

    • Detect Xworm Payload

    • 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

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

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

    • 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

    • 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.

    • 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 user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • 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.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks