Can my Specialist degree be equalized to Bachelor degree?
Since 1997, having a Russian (or rather "Soviet"-style) 5-year Specialist (специалист) degree is formally recognized as the equivalent of holding a Master's degree (cf. Mutual Recognition of Qualifications: the Russian Federation and the Other European Countries); Judging by the fact that, in Canada, one can typically directly enter a PhD program without e.g. doing a Master's degree course beforehand (as is typical in e.g. the USA), you should have no problems fulfilling the formal requirements to enter a PhD program there.