General

  • Target

    b71d7f20ff08a11a454c93a49ee3ba4d52537ef39737488579caaa9c3fd8ece5N.exe

  • Size

    1.8MB

  • Sample

    241220-ffaqwszndt

  • MD5

    8118ab250b375738223da0ce778f8a00

  • SHA1

    ec9efc9ebc9ede542bd6de70ee00104db21138e4

  • SHA256

    b71d7f20ff08a11a454c93a49ee3ba4d52537ef39737488579caaa9c3fd8ece5

  • SHA512

    2a86fdc77517f457aed9d977722789b621c6623c698016e9038ab1e7fac2947a3c9ef950e282e1f811b245d304badd1a39e4cd6bd14a15c3a7bee283e008e833

  • SSDEEP

    24576:BQnQ29/eiYG5I6Y2LLQCuHKjiU7ALyIVoP1zZBXGBQKFoT4z6xEXWbFdzpiDCbp:BQFRGG5RkDi7AytPf4boT4mxEXe4+1

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

lumma

Extracted

Family

cryptbot

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Targets

    • Target

      b71d7f20ff08a11a454c93a49ee3ba4d52537ef39737488579caaa9c3fd8ece5N.exe

    • Size

      1.8MB

    • MD5

      8118ab250b375738223da0ce778f8a00

    • SHA1

      ec9efc9ebc9ede542bd6de70ee00104db21138e4

    • SHA256

      b71d7f20ff08a11a454c93a49ee3ba4d52537ef39737488579caaa9c3fd8ece5

    • SHA512

      2a86fdc77517f457aed9d977722789b621c6623c698016e9038ab1e7fac2947a3c9ef950e282e1f811b245d304badd1a39e4cd6bd14a15c3a7bee283e008e833

    • SSDEEP

      24576:BQnQ29/eiYG5I6Y2LLQCuHKjiU7ALyIVoP1zZBXGBQKFoT4z6xEXWbFdzpiDCbp:BQFRGG5RkDi7AytPf4boT4mxEXe4+1

    • 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 Vidar Stealer

    • Lumma Stealer, LummaC

      Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

    • Lumma family

    • Modifies Windows Defender Real-time Protection settings

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

    • Enumerates VirtualBox registry keys

    • 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

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

    • 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