General

  • Target

    file.exe

  • Size

    2.9MB

  • Sample

    241214-whfmxszlax

  • MD5

    81a52fd8282cb8620f8aa3016087ff62

  • SHA1

    8199f9cf82fa57041f8de4f097e6ede8f95bac8f

  • SHA256

    3e1a572e7eee25c8a96fe9821189b0da3e74346687e39954431f668e5012e14b

  • SHA512

    32c579096849c76b7071afc5922892e770ca9f7f76d850f9096573c678cd607d8a91991eeb65bf7dd2618c33ea11bf99325dc733569c55228ada8cfb61b91b6a

  • SSDEEP

    49152:sSWWuJecQ3CK2YiQMZZfNNU4TjhTUOxJVKEjjnJ8:sSWNjQ3CK2Y/MZhN3N2EG

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

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://176.113.115.178/GO.png

Extracted

Family

amadey

Version

5.10

Botnet

03013e

C2

http://185.11.61.104

Attributes
  • install_dir

    0d7d65a8fb

  • install_file

    Gxtuum.exe

  • strings_key

    6a02c43bc60cba83349fcb51d95a69ff

  • url_paths

    /7jbBdsS/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://drive-connect.cyou/api

Targets

    • Target

      file.exe

    • Size

      2.9MB

    • MD5

      81a52fd8282cb8620f8aa3016087ff62

    • SHA1

      8199f9cf82fa57041f8de4f097e6ede8f95bac8f

    • SHA256

      3e1a572e7eee25c8a96fe9821189b0da3e74346687e39954431f668e5012e14b

    • SHA512

      32c579096849c76b7071afc5922892e770ca9f7f76d850f9096573c678cd607d8a91991eeb65bf7dd2618c33ea11bf99325dc733569c55228ada8cfb61b91b6a

    • SSDEEP

      49152:sSWWuJecQ3CK2YiQMZZfNNU4TjhTUOxJVKEjjnJ8:sSWNjQ3CK2Y/MZhN3N2EG

    • Amadey

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

    • Amadey family

    • 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

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • UAC bypass

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

    • Blocklisted process makes network request

    • 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

    • 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 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 Microsoft Outlook profiles

    • 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.

    • 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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks