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

Registers COM server for autorun

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.

Checks whether UAC is enabled

Drops desktop.ini file(s)

Enumerates connected drives

Attempts to read the root path of hard drives other than the default C: drive.

Writes to the Master Boot Record (MBR)

Bootkits write to the MBR to gain persistence at a level below the operating system.

Drops file in System32 directory

Suspicious use of NtSetInformationThreadHideFromDebugger