General

  • Target

    4410b1ef33f5f0ef64c12c1d56660c09d7a49329a73b16fa824e341b4a7e1d58

  • Size

    5.5MB

  • Sample

    241213-n5tjaszjem

  • MD5

    595064e37dcbc37d6931d2d68ac3b1a4

  • SHA1

    83d683b0c574c607cee956533f07b2559927a310

  • SHA256

    4410b1ef33f5f0ef64c12c1d56660c09d7a49329a73b16fa824e341b4a7e1d58

  • SHA512

    5a10196383b11cd65a3d2b3d4edf57d41351cb2991fdca82d1ac753dd92e467a55ecafcf1af54a521c51f71429dc81db6a653b800eef59ff12c4579aa625eb14

  • SSDEEP

    98304:HIG+VDb2fJy5aOWCSUw3hvM2egs1OCzjFa5pobb:SeiwRTegsLxa

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

C2

https://sordid-snaked.cyou/api

https://awake-weaves.cyou/api

https://wrathful-jammy.cyou/api

https://debonairnukk.xyz/api

https://diffuculttan.xyz/api

https://effecterectz.xyz/api

https://deafeninggeh.biz/api

https://immureprech.biz/api

https://tacitglibbr.biz/api

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Extracted

Family

lumma

C2

https://tacitglibbr.biz/api

https://immureprech.biz/api

https://deafeninggeh.biz/api

https://wrathful-jammy.cyou/api

https://awake-weaves.cyou/api

https://sordid-snaked.cyou/api

https://drive-connect.cyou/api

Extracted

Family

gurcu

C2

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

https://api.telegram.org/bot7822020748:AAGrioLZvBM_jgQaep0KKTha1_5Kzmwl62s/sendDocument?chat_id=7538374929&caption=%F0%9F%92%A0DOTSTEALER%F0%9F%92%A0%0A%F0%9F%92%ABNew%20log:%0AIP:%20181.215.176.83%0AUsername:%20Admin%0ALocation:%20United%20Kingdom%20[GB],%20London,%20Englan

Targets

    • Target

      4410b1ef33f5f0ef64c12c1d56660c09d7a49329a73b16fa824e341b4a7e1d58

    • Size

      5.5MB

    • MD5

      595064e37dcbc37d6931d2d68ac3b1a4

    • SHA1

      83d683b0c574c607cee956533f07b2559927a310

    • SHA256

      4410b1ef33f5f0ef64c12c1d56660c09d7a49329a73b16fa824e341b4a7e1d58

    • SHA512

      5a10196383b11cd65a3d2b3d4edf57d41351cb2991fdca82d1ac753dd92e467a55ecafcf1af54a521c51f71429dc81db6a653b800eef59ff12c4579aa625eb14

    • SSDEEP

      98304:HIG+VDb2fJy5aOWCSUw3hvM2egs1OCzjFa5pobb:SeiwRTegsLxa

    • Amadey

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

    • Amadey family

    • 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

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

    • Renames multiple (8917) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • 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.

    • 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.

    • 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

    • 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.

    • 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.

    • 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