General

  • Target

    39c70553879c5b9162ac95578f271a2f1a5cb13b21cb32a153e7fcd83d37f50a.exe

  • Size

    4.9MB

  • Sample

    241206-cwqkha1mhp

  • MD5

    ea853f2d8229cfa39e49a83fa6c59372

  • SHA1

    d00c38b522abdefd2ed9114963d7f89ab066f49d

  • SHA256

    39c70553879c5b9162ac95578f271a2f1a5cb13b21cb32a153e7fcd83d37f50a

  • SHA512

    b7548f8acf8b64d9c244b7f6376ea82bdf424fc3050a7fa794529fbf160e2ecfd44b5c1adcb92ae416f41d4d8ee1c30ed3d06f9ede6b04029871c0fcf7cf08b8

  • SSDEEP

    24576:k9WW3VAzGWt10vF4iQisAEo0txxwPNRNKskF3NUkXRfrkQgp2OAozeOIIqrovBff:k9W1zGWMvkiwttxx1eD/tHBT5yUSb

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://exodus.lat/COMSurrogate.exe

Extracted

Family

stealc

Botnet

drum

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

lumma

C2

https://impend-differ.biz/api

https://print-vexer.biz/api

https://dare-curbys.biz/api

https://covery-mover.biz/api

https://formy-spill.biz/api

https://dwell-exclaim.biz/api

https://zinc-sneark.biz/api

https://se-blurry.biz/api

https://ratiomun.cyou/api

https://atten-supporse.biz/api

Extracted

Family

gcleaner

C2

92.63.197.221

45.91.200.135

Extracted

Family

orcus

C2

45.74.38.211:4782

Mutex

7a9c0f279c464958aebbd585f20f1cf2

Attributes
  • autostart_method

    Disable

  • enable_keylogger

    false

  • install_path

    %programfiles%\Orcus\Orcus.exe

  • reconnect_delay

    10000

  • registry_keyname

    Orcus

  • taskscheduler_taskname

    Orcus

  • watchdog_path

    AppData\OrcusWatchdog.exe

Extracted

Family

lumma

C2

https://covery-mover.biz/api

https://se-blurry.biz/api

https://zinc-sneark.biz/api

https://dwell-exclaim.biz/api

https://formy-spill.biz/api

https://dare-curbys.biz/api

https://print-vexer.biz/api

https://atten-supporse.biz/api

Targets

    • Target

      39c70553879c5b9162ac95578f271a2f1a5cb13b21cb32a153e7fcd83d37f50a.exe

    • Size

      4.9MB

    • MD5

      ea853f2d8229cfa39e49a83fa6c59372

    • SHA1

      d00c38b522abdefd2ed9114963d7f89ab066f49d

    • SHA256

      39c70553879c5b9162ac95578f271a2f1a5cb13b21cb32a153e7fcd83d37f50a

    • SHA512

      b7548f8acf8b64d9c244b7f6376ea82bdf424fc3050a7fa794529fbf160e2ecfd44b5c1adcb92ae416f41d4d8ee1c30ed3d06f9ede6b04029871c0fcf7cf08b8

    • SSDEEP

      24576:k9WW3VAzGWt10vF4iQisAEo0txxwPNRNKskF3NUkXRfrkQgp2OAozeOIIqrovBff:k9W1zGWMvkiwttxx1eD/tHBT5yUSb

    • 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

    • 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

    • Orcus

      Orcus is a Remote Access Trojan that is being sold on underground forums.

    • Orcus family

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Suspicious use of NtCreateUserProcessOtherParentProcess

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

    • Orcurs Rat Executable

    • 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.

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Enumerates processes with tasklist

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks