I've added a photo with more detail on the antennae
I've now added a further photo of the moth taken the previous night. It's a poor photo but it shows a very red underwing area (perhaps suggesting Oxycanus rufescens)
This moth is one of the Oxycanus species which are generally difficult to separate using wing pattern alone. Examination of the structure of the antenna and genetalia required for positive identification.
Looking at the MoV guide to identification the antennae suggest O. australis or O. rufescens. The probable habitat (dry sclerophyll forest), smaller size and colouration would suggest to me O. rufescens is likely.