Crush graham crackers in a blender or food processor; add melted butter and sugar and blend until evenly combined. Gently press graham cracker mixture into 12 tall shot glasses.
Mix unflavored gelatin and 1/4 cup boiling water together in a bowl until well mixed.
Combine cream cheese, confectioners' sugar, vanilla extract, and gelatin mixture in a blender; pulse a few times. Add 1 cup vodka; blend until smooth. Taste mixture and adjust confectioners' sugar if necessary. Pour cream cheese mixture over graham cracker layer, leaving about 1 inch on the top. Chill for at least 1 hour.
Mix strawberry gelatin and 1/4 cup boiling water together in a bowl; stir well and add remaining 1/2 cup vodka and ice cubes. Stir until ice melts and mixture starts to thicken; pour over cream cheese mixture layer. Chill shots for at least 30 minutes.