bān (pān) lóng fù fèng
ban1 (pan1) long2 fu4 feng4
hitching a ride to the sky on the dragon and phoenix
currying favor with the rich and powerful in the hope of advancement
≅ hitching one’s wagon to a star
But “扳” is also a variant form of “攀”, so I’m not quite sure about the pronunciation.
攀附 / pānfù / social climbing