General

  • Target

    d8ab74b2a9450c2ca9d269ce168e0b55722852e612b04fc162421497bbcd1e4a

  • Size

    2.8MB

  • Sample

    241219-skzl2avnbr

  • MD5

    24b901146bc0e8b0dd5a232218153c82

  • SHA1

    ae0b756a87ad4482d474653cb47c1a92adeb84d2

  • SHA256

    d8ab74b2a9450c2ca9d269ce168e0b55722852e612b04fc162421497bbcd1e4a

  • SHA512

    dcae00cd24bc17825b32a39a737dbda90f0bea019bc356865eec1fb831c8be7cb114bf6913de4c3d17c42f4fcec7e5b4a1bad65a202de41680e58bf4d12e99f4

  • SSDEEP

    49152:cBlY2cKSZQlaMrf44mrNVaQ/n+hCAyQ7R2cKnnVqO:WlY2JSZQlaMrA4CfaQ/+mb

Malware Config

Extracted

Family

amadey

Version

4.41

Botnet

fed3aa

C2

http://185.215.113.16

Attributes
  • install_dir

    44111dbc49

  • install_file

    axplong.exe

  • strings_key

    8d0ad6945b1a30a186ec2d30be6db0b5

  • url_paths

    /Jo89Ku7d/index.php

rc4.plain

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

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

cryptbot

Extracted

Family

lumma

Targets

    • Target

      d8ab74b2a9450c2ca9d269ce168e0b55722852e612b04fc162421497bbcd1e4a

    • Size

      2.8MB

    • MD5

      24b901146bc0e8b0dd5a232218153c82

    • SHA1

      ae0b756a87ad4482d474653cb47c1a92adeb84d2

    • SHA256

      d8ab74b2a9450c2ca9d269ce168e0b55722852e612b04fc162421497bbcd1e4a

    • SHA512

      dcae00cd24bc17825b32a39a737dbda90f0bea019bc356865eec1fb831c8be7cb114bf6913de4c3d17c42f4fcec7e5b4a1bad65a202de41680e58bf4d12e99f4

    • SSDEEP

      49152:cBlY2cKSZQlaMrf44mrNVaQ/n+hCAyQ7R2cKnnVqO:WlY2JSZQlaMrA4CfaQ/+mb

    • 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

    • 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

    • Sets service image path in registry

    • 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.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • 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.

    • 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

    • Boot or Logon Autostart Execution: Authentication Package

      Suspicious Windows Authentication Registry Modification.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks