General

  • Target

    f77d07b9c49ce8361a05f50d39c3b2eefc02c9cf64200c80fdec8f445b7cac7d.exe

  • Size

    1.8MB

  • Sample

    241217-f5h4kasrap

  • MD5

    4759820fde0c680644d332189bec83aa

  • SHA1

    57299ea1dac94f357b2ff19e36df44f8eb5b4a33

  • SHA256

    f77d07b9c49ce8361a05f50d39c3b2eefc02c9cf64200c80fdec8f445b7cac7d

  • SHA512

    156af54e601d1826e61407e03cd499344b17df99c0e6f57d928d2c748873556855deac4bbed1a319f5512e7456b399c5ffe089e0ba887ed62e432c9040767651

  • SSDEEP

    49152:oOaxlQZ6PXdx29IOHABzAmN1tnaodro4cxR2zV:7jZ6PXdx2FABMm4OrJ6R2z

Malware Config

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

Targets

    • Target

      f77d07b9c49ce8361a05f50d39c3b2eefc02c9cf64200c80fdec8f445b7cac7d.exe

    • Size

      1.8MB

    • MD5

      4759820fde0c680644d332189bec83aa

    • SHA1

      57299ea1dac94f357b2ff19e36df44f8eb5b4a33

    • SHA256

      f77d07b9c49ce8361a05f50d39c3b2eefc02c9cf64200c80fdec8f445b7cac7d

    • SHA512

      156af54e601d1826e61407e03cd499344b17df99c0e6f57d928d2c748873556855deac4bbed1a319f5512e7456b399c5ffe089e0ba887ed62e432c9040767651

    • SSDEEP

      49152:oOaxlQZ6PXdx29IOHABzAmN1tnaodro4cxR2zV:7jZ6PXdx2FABMm4OrJ6R2z

    • 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

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

    • Downloads MZ/PE file

    • 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 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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks