General

  • Target

    https://rpload.com/AdobeAudition

  • Sample

    230311-z7ghasdb5t

Malware Config

Extracted

Family

lumma

C2

82.118.23.50

Targets

    • Target

      https://rpload.com/AdobeAudition

    • Lumma Stealer

      An infostealer written in C++ first seen in August 2022.

    • Enumerates VirtualBox DLL files

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

    • Looks for VirtualBox drivers on disk

    • Looks for VirtualBox executables on disk

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Looks for VMWare drivers on disk

    • 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

    • 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.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • 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.

    • Checks whether UAC is enabled

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks