The plane was flying from the Russian Black Sea resort of Anapa to St Petersburg when it crashed near Donetsk, killing all on board.
Most of the passengers were thought to be Russians, including 45 children.
Officials say bad weather or a possible fire may have caused the crash. Investigators have now recovered the flight data and voice recorders.
Officials working at the scene of the crash in eastern Ukraine have also recovered the bodies or parts of bodies of all 170 victims, Russian news agencies report.