Here is the full list of all 13 Malicious Fallen trophies - there are 9 bronze, 3 silver and 1 gold.
Cleared Story Mode on Normal Difficulty without using a Continue
Cleared "The Slayer" in Story Mode
Performed a successful counterattack
Changed Garb
Defeated 1 boss
Performed 7 Just Guards in a row
Performed a Chain of 200 or higher
Cleared "Rebirth" in Story Mode
Cleared "Demise" in Story Mode
Broke your own record in Online Mode
Cleared "Pursuit" in Story Mode
Cleared "Demise" without ever using Forbidden Power
Defeated the Mantle of Malice on Normal Difficulty in under 5 minutes