General

  • Target

    b3fdbd0e34f2c77b939ae739da0fcad5dd2c3385d6ecd4e59fbf0c694d121944

  • Size

    5.5MB

  • Sample

    250211-2splgatpdn

  • MD5

    be5397f3b0bde8d16067fdccff9cc387

  • SHA1

    904f4ac82cb0748bd6416196d58c87c06eac1fec

  • SHA256

    b3fdbd0e34f2c77b939ae739da0fcad5dd2c3385d6ecd4e59fbf0c694d121944

  • SHA512

    076ca3fc19706d8a701ee43805f65c2e81acdfcbb6eb35445cdb8fd6a2d8e81aecc35446d7124de3b286a1cce76b43b589ea84eb093c3fe17eecc792c2cebd6b

  • SSDEEP

    98304:l2DztHRUIE0Orvb60fnOpmcP3WLJwAQo8MUgKAT9jsaFTL:oDztH6IcrzjxcfWLSQXvxBsa

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

stealc

Botnet

reno

C2

http://185.215.113.115

Attributes
  • url_path

    /c4becf79229cb002.php

Targets

    • Target

      b3fdbd0e34f2c77b939ae739da0fcad5dd2c3385d6ecd4e59fbf0c694d121944

    • Size

      5.5MB

    • MD5

      be5397f3b0bde8d16067fdccff9cc387

    • SHA1

      904f4ac82cb0748bd6416196d58c87c06eac1fec

    • SHA256

      b3fdbd0e34f2c77b939ae739da0fcad5dd2c3385d6ecd4e59fbf0c694d121944

    • SHA512

      076ca3fc19706d8a701ee43805f65c2e81acdfcbb6eb35445cdb8fd6a2d8e81aecc35446d7124de3b286a1cce76b43b589ea84eb093c3fe17eecc792c2cebd6b

    • SSDEEP

      98304:l2DztHRUIE0Orvb60fnOpmcP3WLJwAQo8MUgKAT9jsaFTL:oDztH6IcrzjxcfWLSQXvxBsa

    • Amadey

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

    • Amadey family

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

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

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • 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.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • 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.

    • 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.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Enumerates processes with tasklist

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks