I work as an analyst at a big 4 firm, but due to unfinished paperwork signed an intern contract. What title should I write on my CV?

I joined a big 4 firm 3 months ago. I recruited for an analyst position and am performing analyst tasks. The problem was with processing my contract. I haven't done military service (which is mandatory) therefore my firm couldn't have me on a formal full-time payroll. The recruiter told me the solution was to sign an intern contract and charge my working hours as normal.

I am planning to stay until next month, then leave to do a MSc degree at a target school in Europe. My question is what do I write on my CV? Analyst or intern? I know in future recruitments companies will do a BG check, so I don't want to be perceived as a fraud.