  We study dark matter production in scenarios where a scale invariant hidden
sector interacts with the Standard Model degrees of freedom via a Higgs portal
$\lambda \Phi^\dagger\Phi s^2$. If the hidden sector is very weakly coupled to
the SM but exhibits strong interactions within its own particle species, the
dark matter abundance may arise as a result of a dark freeze-out occurring in
the hidden sector. Because of scale invariance, the free parameters in the
hidden sector are determined and the dark matter candidate exhibits a 'WIMP
miracle of the second kind'. Demonstrating the predictive power of scale
invariance, we carry out thorough analysis of dark matter production in several
benchmark scenarios where the hidden sector contains either a scalar, fermion
(sterile neutrino), or vector dark matter, and discuss the observational
consequences of these scenarios.
