  In this work we study a classically scale-invariant extension of the Standard
Model in which the dark matter and electroweak scales are generated through the
Coleman-Weinberg mechanism. The extra $SU(3)_X$ gauge factor gets completely
broken by the vacuum expectation values of two scalar triplets. Out of the
eight resulting massive vector bosons the three lightest are stable due to an
intrinsic $Z_2\times Z_2'$ discrete symmetry and can constitute dark matter
candidates. We analyze the phenomenological viability of the predicted
multi-Higgs sector imposing theoretical and experimental constraints. We
perform a comprehensive analysis of the dark matter predictions of the model
solving numerically the set of coupled Boltzmann equations involving all
relevant dark matter processes and explore the direct detection prospects of
the dark matter candidates.
