Already entered into Wiki.
Cuban government media reported the flight, DMJ 0972, was a Boeing 737 that Cubana de Aviacion leased from Mexico's Global Air. The plane was headed for Holguin, a province on the eastern side of the island ...
...Juventud Rebelde, a publication from the socialist party, reported Roberto Peña Samper, the president of the Cuban Aviation Corporation, said the U.S. embargo “placed by successive American administrations prevents” them “from acquiring the resources necessary to operate a larger fleet
of planes and to enhance airport services.”
They note that the plane was leased from Mexico's Global Air, but do not mention Blue Panorama.
Anything Cuba wants it can get from any other country in the world, even if it takes a few layers of bureaucracy and front companies.