Looks like a Eurocopter AS365 Dauphin with hard points.
Styling as bad as their crappy KIAs.
Ping.
It is a modified Eurocopter Panther helicopter (the armed military variant of the Dauphin II civil helicopter. Compared to the standard Panther, the KAI LAH appears to be approximately 2-3 feet shorter (with the length removed from fuselage between rear of engine nacelle pods and horizontal stabilizer), and to have had the upper parts of the winglets at the ends of the horizontal stabilizer removed. I am not sure why KAI would have removed the upper portion of the winglets as the large winglets and tall, large area vertical stabilizer atop the Fenestron tail rotor gave the Dauphin/Panther series excellent lateral yaw-axis stability - something that would be needed to make the LAH a stable weapons platform. The Panther was a good starting point though as it was a reasonably fast, long range helicopter with a good blend of stablity/maneuverability and payload. The space inside the Panther/LAH would allow for carriage of additional fuel, munitions, or crew (possibly to operate the electro-optical/laser targeting system seen on the nose).