I suspect they didn't "hack" your wallet, or your 2FA... they will have keylogged the seed when you had to enter it during wallet setup.
By using the seed they will have been able to restore the 2FA wallet in "disabled" mode, with two private keys in the wallet file, allowing them to create and sign transactions while bypassing TrustedCoin's 2FA system.
An unfortunate, and costly, lesson about the dangers of malware and cryptocurrency
Cryptocurrency can be a harsh mistress.
By using the seed they will have been able to restore the 2FA wallet in "disabled" mode, with two private keys in the wallet file, allowing them to create and sign transactions while bypassing TrustedCoin's 2FA system.
An unfortunate, and costly, lesson about the dangers of malware and cryptocurrency
I traced the stolen bitcoins to Binance, unsure what I can do from here.
Pretty much nothing. I doubt Binance will care and to be honest, aside from "your word", there is no way to prove they were actually "stolen". Yes, they were transferred... but there is no way to prove that this was an unauthorised transfer, as the thief "proved" ownership by signing the transaction with the private keys... Cryptocurrency can be a harsh mistress.