General

  • Target

    4585d37c6262323774089a03884fd2848c8213bcdbe3ee1d3f2a0fde4ad9f070

  • Size

    5.5MB

  • Sample

    250211-nx575axmex

  • MD5

    77a3c3d5bb1cfed2fe0f671b47587fea

  • SHA1

    5ffa631bc6c8039728bc242cb4b53f2537989c9a

  • SHA256

    4585d37c6262323774089a03884fd2848c8213bcdbe3ee1d3f2a0fde4ad9f070

  • SHA512

    2997dfe2b26208475847c03a174cc9d4e4739f82622c0120699558d7379fa567e5ba3f2d1e15c8b6132603aa945dc672c82dd627ece7d787a27975e901f89b42

  • SSDEEP

    98304:GPehuq4AturODM/4vpB5ziJ37OtmaQoZQva22GyASk6BZwEXzktR23/jqMhMGt:GPeh3mw7HziJLyZ2NTBCfwEXz2R23/jD

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://185.215.113.16/defend/random.exe

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://185.215.113.16/mine/random.exe

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

stealc

Botnet

reno

C2

http://185.215.113.115

Attributes
  • url_path

    /c4becf79229cb002.php

Extracted

Family

lumma

C2

https://timnelessdesign.cyou/api

https://paleboreei.biz/api

Targets

    • Target

      4585d37c6262323774089a03884fd2848c8213bcdbe3ee1d3f2a0fde4ad9f070

    • Size

      5.5MB

    • MD5

      77a3c3d5bb1cfed2fe0f671b47587fea

    • SHA1

      5ffa631bc6c8039728bc242cb4b53f2537989c9a

    • SHA256

      4585d37c6262323774089a03884fd2848c8213bcdbe3ee1d3f2a0fde4ad9f070

    • SHA512

      2997dfe2b26208475847c03a174cc9d4e4739f82622c0120699558d7379fa567e5ba3f2d1e15c8b6132603aa945dc672c82dd627ece7d787a27975e901f89b42

    • SSDEEP

      98304:GPehuq4AturODM/4vpB5ziJ37OtmaQoZQva22GyASk6BZwEXzktR23/jqMhMGt:GPeh3mw7HziJLyZ2NTBCfwEXz2R23/jD

    • Amadey

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

    • Amadey family

    • Detect Vidar Stealer

    • Detects Healer an antivirus disabler dropper

    • Healer

      Healer an antivirus disabler dropper.

    • Healer family

    • Lumma Stealer, LummaC

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

    • Lumma family

    • Modifies Windows Defender DisableAntiSpyware settings

    • Modifies Windows Defender Real-time Protection settings

    • Modifies Windows Defender TamperProtection settings

    • Modifies Windows Defender notification settings

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

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

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Downloads MZ/PE file

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • 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.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • 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.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks