Here is the full list of all 40 Until Dawn: Rush of Blood trophies - there are 21 bronze, 16 silver, 2 gold and 1 platinum.
Finish 'Hotel Hell' on Insane
Finish 'Psycho Cellblock' on Insane
Finish 'Haunted Lodge' on Insane
Complete a level using only one hand
Collect all the skittles in one level
Finish 'Nightmare Descent' on Insane
Beat a previous set score on a level
Finish 'Final Inferno'
Die from spider venom
Finish 'Mines of Death'
Finish 'Ghost Town'
Finish 'Psycho Cellblock'
Kill 20 enemies with barrels
Have picked up all weapons
Hit three targets with one shot from the Revolver
Finish 'Hotel Hell'
Get 100 headshots
Dual wield Machine Pistols
Shoot all the moving ducks in 'Haunted Lodge'
Die from hitting head on a barrier
Get killed by a sawblade
Get > 80% accuracy on a level
Finish 'Nightmare Descent'
Blast off 100 limbs
Reach multiplier x8
Dual wield Revolvers
Hit three or more targets with a blast from the shotgun
Dual wield Shotguns
Finish 'Haunted Lodge'
Pick up a new weapon
Reach multiplier x4
Collect all trophies
Finish 'Ghost Town' on Insane
Finish 'Mines of Death' on Insane
Finish 'Final Inferno' on Insane
Finish the story on any difficulty
Finish the story on Psychotic
Collect all the skittles
Complete a level using only pistols
See all the 'Moment of sanity' sequences