General

  • Target

    a916c16724e4aa3eef3839f1647f2b0f.bin

  • Size

    1.7MB

  • Sample

    241221-byyhfsypfw

  • MD5

    1769eecb5cc0319ce93ed57c04bf51a7

  • SHA1

    537fa77988c8f962e91fda6e957672bf7a5c899f

  • SHA256

    b62d7a87f7ab009d2c30342422b24fecae4b01ca5028313c088f37bb9fa912b8

  • SHA512

    04beba2ae9d453ac5946618a419901cd91ec08958bed68713a803cac6ead9fc14d430e7975567eab178cb696b24ee921ecd0daf95798cf26c35c5dd4c7f243fc

  • SSDEEP

    24576:1V7luYNlDFUAQ2aoOxS6ziEXVl/BZ/fCBYq3+6Nx1T2eb2CP+Mef9ndouQVh2XPj:vEYLJUANRoz1jLYYW+692eBPW9dM+XfD

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

  • telegram

    https://api.telegram.org/bot8174428401:AAHxlGtOg4tsy0J0kYm7h8822BuHfnk8vKQ/sendMessage?chat_id=1434988227

Extracted

Family

lumma

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

Mutex

hgzuiajogwnqs

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/dDuwSpUA

aes.plain

Extracted

Family

gurcu

C2

https://api.telegram.org/bot8174428401:AAHxlGtOg4tsy0J0kYm7h8822BuHfnk8vKQ/sendMessage?chat_id=1434988227

Targets

    • Target

      45400639f60d98c903e3942bea79413d9779bb1a62d96ffe1ac621de8dbd3800.exe

    • Size

      2.9MB

    • MD5

      a916c16724e4aa3eef3839f1647f2b0f

    • SHA1

      981069c2d4254ca1b9cf41bc5dab8db5bfda1558

    • SHA256

      45400639f60d98c903e3942bea79413d9779bb1a62d96ffe1ac621de8dbd3800

    • SHA512

      dc4949109a56e0b177a266e3b30d7675a6af578af31e103dc5ca9a3e26da42c01b472b64cbe0b17c4c64890f477bfffc1a95bc256159ce7e112da20971448980

    • SSDEEP

      49152:XYcTFPtXwQoLZUBwsfBvrDtWM2ztzbHm2HCoQVQBhm9vOVTU:vho9UBwsfBTDtW1ztHHmToQycvOVT

    • Amadey

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

    • Amadey family

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Asyncrat family

    • Detect Vidar Stealer

    • Detect Xworm Payload

    • 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

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Async RAT payload

    • 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.

    • 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 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.

    • 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.

    • 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