Vaccine makers are trying to hide their work behind the veil of "intellectual property". The makers of this malware want the information. For what purpose do the 'malware' authors want the information?
1. To make a vaccine that works. Making a vaccine is an objective good.
2. To discover flaws with the vaccine that the company developing the vaccine would rather keep secret. Alerting the public to dangerous vaccines is an objective good.
I believe the real story here is that governments allow vaccine development companies to hide their work behind a shield of intellectual property, while the world needs a vaccine as quickly as possible.