Morocco is a highly susceptible wheat cultivar to the three rusts (stripe, leaf and stem) and usually serve as a check entry.
It might originally, but could lost its resistance due to gene mutation, rearrangement and such later. More experiments are needed to find out.
It is very likely that it has some, but hidden, since the pathogen races at the given environment might be virulent for them. The resistance genes of Morocco, if it has any, can be discovered in tests with pathogen races or by exposing it to pathogen populations in different parts of the world. It is quite common, that cultivars susceptible in Europe are resistant in America or Asia and ice versa.
Morocco has been found to have a brown rust resistance gene according to recent reports from Plant Breeding Institute, Sydney , Australia.
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