[I thought it was fairly obvious that it was the Order of the Silence, attempting to hijack the TARDIS in order to prevent the Doctor from traveling to the Fields of Trenzalore and answering the question, "Doctor who?".
They can casually destroy one of the most powerful objects in the Universe but can't build a spacesuit without help?
1. What makes you think the destruction of the TARDIS was deliberate? I took that to have been the accidental side-effect of their remote hijacking attempt.
2. Who says that the Order of the Silence's attempts to create the spaceship vs. hijack the TARDIS took place anywhere near one-another in their own chronology? One could have happened centuries after the other for them.