General

  • Target

    27078da22468bc047da60bdfaf05b18f5d135d27ff58c655e7e9e474ce02e8d3.exe

  • Size

    1.8MB

  • Sample

    241121-x8q21szlgq

  • MD5

    82d65703f59b88d8f091de327bbabce4

  • SHA1

    07580dac62ef9478a94f1a316616f15c9d0a9f13

  • SHA256

    27078da22468bc047da60bdfaf05b18f5d135d27ff58c655e7e9e474ce02e8d3

  • SHA512

    3471a3a1acb124cce0219d9330b46549a560f0b99dc8e3ca216b449ee4a0e93d3e1f0963e725a143faca932cfc0ba804e7724b836e3c185d6fda39c03d19671f

  • SSDEEP

    49152:5BXUShjURElo/e6Lk5PfzHLR4nTsD2g02q2fMypj8xok0gPC/4KPRr6:fX9h/PPfx4nTsigA2f5pj8WXNAKI

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://176.113.115.178/FF/2.png

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://176.113.115.178/FF/3.png

Extracted

Language
hta
Source
URLs
hta.dropper

http://176.113.115.178/Windows-Update

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://176.113.115.178/FF/1.png

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

mars

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Targets

    • Target

      27078da22468bc047da60bdfaf05b18f5d135d27ff58c655e7e9e474ce02e8d3.exe

    • Size

      1.8MB

    • MD5

      82d65703f59b88d8f091de327bbabce4

    • SHA1

      07580dac62ef9478a94f1a316616f15c9d0a9f13

    • SHA256

      27078da22468bc047da60bdfaf05b18f5d135d27ff58c655e7e9e474ce02e8d3

    • SHA512

      3471a3a1acb124cce0219d9330b46549a560f0b99dc8e3ca216b449ee4a0e93d3e1f0963e725a143faca932cfc0ba804e7724b836e3c185d6fda39c03d19671f

    • SSDEEP

      49152:5BXUShjURElo/e6Lk5PfzHLR4nTsD2g02q2fMypj8xok0gPC/4KPRr6:fX9h/PPfx4nTsigA2f5pj8WXNAKI

    • 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

    • Detects CryptBot payload

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Modifies Windows Defender Real-time Protection settings

    • Modifies security service

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • UAC bypass

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

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Creates new service(s)

    • Downloads MZ/PE file

    • Sets service image path in registry

    • Stops running service(s)

    • 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.

    • Indicator Removal: Clear Windows Event Logs

      Clear Windows Event Logs to hide the activity of an intrusion.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Windows security modification

    • Accesses Microsoft Outlook profiles

    • 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.

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks