Is preparing the practical section of graduation theses (bachelor's, master's, doctorate) for others in exchange for money, while the student obtains the certificate, employment, or promotions without any effort from them, considered a humane act or is it forbidden?

It is not permissible to do students' research, solve their exams, or complete assignments given to them by educational institutions, because that is considered prohibited cheating and cooperation in sin and falsehood, whether for compensation or without compensation, due to Allah's saying: "And cooperate in righteousness and piety, but do not cooperate in sin and aggression." Whatever was earned from this forbidden act is considered ill-gotten gain that must be disposed of by spending it on the welfare of Muslims or on the poor and needy, unless the perpetrator was ignorant of the prohibition and repented, in which case he may benefit from what has passed, due to Allah's saying: "So whoever receives an admonition from his Lord and desists, he may have what has passed, and his affair is left to Allah."