The 22-year-old centre-forward will stay with the White-Blues until the end of the 2024/25 season.
Grulev scored six goals this season, making him the second top-scorer of the team.
He is a product of Dynamo Academy. Vyacheslav made his debut at the professional level for Dynamo-2 in 2016, where he scored three times in 19 matches. He played his debut game for the first team in 2018 and since then, Vyacheslav netted 13 goals in 72 encounters.