Checks computer location settings

Looks up country code configured in the registry, likely geofence.

Executes dropped EXE

Loads dropped DLL

Windows security modification

Adds Run key to start application

Checks whether UAC is enabled

Maps connected drives based on registry

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

Network Share Discovery

Attempt to gather information on host network.

Writes to the Master Boot Record (MBR)

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

Suspicious use of SetThreadContext