Ssnake's idea is also what came to mind for me, ballistic launch/boost phase, followed by cruise to target.
MARVs carried by ballistic missiles already fly towards a target and even perform evasive maneuvers to avoid ABM measures.
The Chinese have developed guided anti-ship ballistic missiles, here:
https://en.wikipedia.org/wiki/DF-21But either way, a ballistic missile is a ballistic missile and not a cruise missile and it doesn't matter if it's guided or not.
A cruise missile has a completely different flight path compared to a ballistic missile. Or resuming ballistic missiles and cruise missiles are mutually exclusive - A missile can't be both.
This is like saying that someone has developed a "Turbofan Jet Rocket Engine" - Turbofan jet engine and rocket engine are mutually exclusive as well.
Beside by looking at this Russian submarine class specs - the Yasen-class - this submarine doesn't carry ballistic missiles (afterall it's a SSN or attack submarine)! It only carries Cruise missiles (P-100, SS-N-26 or SS-N-27 depending on the source or even configuration) which are launched from a Vertical launching system (VLS).
Perhaps since the missiles are launched from a Vertical launching system, this gave the article's author the idea that the missiles had somehow a "ballistic" profile?? Nevertheless this clearly seems to be an error from the article's author part.