General

  • Target

    file.exe

  • Size

    3.0MB

  • Sample

    241221-qf3f1szqcj

  • MD5

    7dc7a8d2e9d44cae10b9b55b65585ddc

  • SHA1

    3e78d38a9ce837926831ea27a0efb1a262877334

  • SHA256

    efbfd7a968dc584c166551f171937da09dd94178b8c27e09f5eab73d1641d0d0

  • SHA512

    e33388557fcea27a9d5be98eb2dc308be8d5d8d3afcb0e27d8834a96c95ba41f97c47f59de8227fd13667e8692e9063162b1d60a84161f57e4f8905f6d6483fe

  • SSDEEP

    49152:kp41N/sSySDz5y6RK5swYTz42X2GPc6mz1:K2spSDz5PK51YTEU21fz

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

xclient.fahrerscheinonlineholen.de:2489

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

Extracted

Family

lumma

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Extracted

Family

gurcu

C2

https://api.telegram.org/bot7855878545:AAEEMUvgpX9jTAxlDd2gM_Sbv2jbI6-5_0o/sendMessage?chat_id=7427009775

Targets

    • Target

      file.exe

    • Size

      3.0MB

    • MD5

      7dc7a8d2e9d44cae10b9b55b65585ddc

    • SHA1

      3e78d38a9ce837926831ea27a0efb1a262877334

    • SHA256

      efbfd7a968dc584c166551f171937da09dd94178b8c27e09f5eab73d1641d0d0

    • SHA512

      e33388557fcea27a9d5be98eb2dc308be8d5d8d3afcb0e27d8834a96c95ba41f97c47f59de8227fd13667e8692e9063162b1d60a84161f57e4f8905f6d6483fe

    • SSDEEP

      49152:kp41N/sSySDz5y6RK5swYTz42X2GPc6mz1:K2spSDz5PK51YTEU21fz

    • Amadey

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

    • Amadey family

    • Detect Vidar Stealer

    • Detect Xworm Payload

    • GCleaner

      GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.

    • Gcleaner family

    • Gurcu family

    • Gurcu, WhiteSnake

      Gurcu aka WhiteSnake is a malware stealer written in C#.

    • 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

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

    • Xmrig family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Enumerates VirtualBox registry keys

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

    • Looks for VirtualBox drivers on disk

    • XMRig Miner payload

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Downloads MZ/PE file

    • Looks for VMWare drivers on disk

    • 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 WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • 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

    • 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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

    • 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