Cops were on the hunt Sunday for two muggers who jumped a 63-year-old woman in a Bronx building and swiped her purse — hurling her to the floor and slicing her with a knife in the process.Surveillance cameras captured the terrifying attack inside 1025 Leggett Ave. at around 5:10 p.m., according to police.The woman can be seen trying to fight off the men, described by cops as being in their 40s, before the despicable duo made off with her purse and wallet, which contained $200 in cash and a debit card.The woman suffered a knife wound to her finger and was later treated at Jacobi Medical Center.The attackers were last seen heading north on Southern Boulevard.