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

Creates a large amount of network flows

This may indicate a network scan to discover remotely running services.

Enumerates connected drives

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

Installs/modifies Browser Helper Object

BHOs are DLL modules which act as plugins for Internet Explorer.

Legitimate hosting services abused for malware hosting/C2

Writes to the Master Boot Record (MBR)

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

Checks system information in the registry

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

Drops file in System32 directory

Suspicious use of NtCreateThreadExHideFromDebugger

Suspicious use of NtSetInformationThreadHideFromDebugger