Zaid Alsalami, Shaykh Dr Zaid Alsalami is an Iraqi born scholar, raised in Australia. He obtained a BA from Al-Mustafa University, Qom, and an MA from the Islamic College in London. He also obtained a PhD from... Answered 1 year ago

Bismihi ta'ala

Although using what is referred to as "pirated" maybe illegal in some countries, due to violation of copyright laws, it does not necessarily mean it is haram to do, from a shar'i perspective. 

This would mean that there is no need for you to "repent" for such a thing. I would advice one observes caution, so as to not get legally in trouble, and follow the infringement laws of where you live. 

And Allah knows best.