**Yes.**

Hawking radiation is _universal_: the black hole is a modification of spacetime geometry, and the quantum fields, which manifest particles, are residents of that spacetime. Thus they are _all_ affected by its presence (i.e. it "couples to" _all_ those fields), and hence any and every physically possible particle can appear in the Hawking radiation from the black hole, at least supposing that all existent particles follow the laws of quantum field theory.

That said, that doesn't mean they are all emitted equally _easily_: for sufficiently massive particles, a suitably-hot black hole is needed or else the emission of the particle species in question is at the very least extraordinarily unlikely. This means that the black hole must be suitably small in mass, because the radiation temperature is inversely related to the black hole mass, and hence very massive particles will only be produced in the very last stages of the black hole's decay.

Hence, indeed dark matter will be emitted, but just when will depend on how massive dark matter particles are, or aren't, which is something we don't know yet as we haven't indisputably seen one.