What is the ruling on using pirated software to prepare a graduation project, and will repentance for that be accepted, and how can atonement be made for the sin, and what is the ruling on using the diploma resulting from this work?

There is no objection to benefiting from the diploma certificate and the graduation research. However, one must cease using the pirated software in the future, as it infringes upon the owner's right. The transgressor is liable for the value of the lost benefits or harm caused. If unable to return the right to its owner, one should donate its value to the poor and needy, striving to estimate the amount accurately, along with repentance and seeking forgiveness.