  In this work, we study an extension of the Standard Model which include a new
massive vector field in the fundamental representation of SU(2)_L. The neutral
component of the new vector field is a natural dark matter candidate. We
compute the Annihilation Cross Section with Sommerfeld Enhancement and the
Photon Flux arising from Dark Matter annihilation events. We found that the
model exhibits a resonant mass part around the range of 2-10 TeV. This
resonance is influenced by the choice of portal Higgs coupling parameter. We
show that these predictions can be partially tested by CTA in the near future.
