Monsters in CF (Dungeon 2F, Forest of Pain and Tower of Despair):
Dust of Chaotic Frontier

Normal monsters in Shinewood:  
Large Recovery Potion
Elixir Materials
Runes of Ancient Lands
Letter of Pardon

BOSSES

Invader Squat Captain - Tower of Despair

Dust of Chaotic Frontier 5x (50%)
Invader Captain's Chest (50%)
Timeworn Armor Piece (50%)
Runes of Ancient Lands 3x (50%)
Jewel of Chantra 1x-2x (40%)

Invader Captain - Shinewood

Invader Captain's Chest (50%)
Runes of Ancient Lands 5x (50%)
Timeworn Armor Piece (50%)
Gold Nugget 5x (50%)
Sand Dust 5x (50%)
Ancient Armor Chest (2.5%)
Shard of Rebirth 1x-50x (12.5%)

Invader Commander - Shinewood

Invader Commander's Chest 2x (50%)
Runes of Ancient Lands 20x (50%)
Timeworn Armor Piece 3x (50%)
Gold Nugget 15x (50%)
Sand Dust 15x (50%)
Ancient Armor Chest (2.5%)
Shard of Rebirth 1x-50x (25%)

Boss Spawn Periods:
02:00-04:00
12:00-14:00
18:00-20:00