On the minotaur the only rules I have found have been in the pathfinder monster builder.
Racial Ability:
Natural Cunning: Immune to maze spells and can never be lost
Racial Attack:
Powerful charge Gore attack (a bonus +2 to hit and does 2d6 dmg)
Racial Traits: +4 Perception, +4 Survival Darkvision: 60ft
They didn't mention rules about stats bonus and negatives, but they did mention that they have low intellect so I would guess it is a +2 Str -2 Int but let me know what you think.
Updated background: Fenrus saw one of the lieutenants kill his mother.