Dominic Funnell, an Australian expert on moths, helped me identifying this species.
Dominic mentions that the moths in the tribe Eupithecinii are a complete nightmare in Australia with many undescribed species.
That said, he thinks that the one on my photo is Chloroclystis filata.

O’Reilly’s Rainforest Retreat, Lamington National Park, Queensland, 4 November 2022