Chest - Glowing pumpkin

An eerily glowing pumpkin. Who did place it here...?

The number of the chests opened: 172671
The number of gained items: 172667
Cheerful-looking pumpkin15.42%
Confused-looking pumpkin15.21%
Mischievous-looking pumpkin15%
Life juice3.09%
Luck boost3.07%
Simple work instructions3.06%
40 Bonds3.06%
Liquid life3.05%
Ground rocket turtle shell3.03%
Experience boost3.02%
Product boost3.02%
Dollar boost3%
Advanced work instructions2.9%
Automation bonus medal2.06%
Energy bonus medal2.01%
Mate tea2.01%
Income bonus medal2%
90 Bonds1.99%
Day of the Dead 2014 Chest1.03%
200 Bonds1.01%
Day of the Dead 2016 Chest1.01%
Character bonus medal0.99%
Day of the Dead 2015 Chest0.99%
Halloween Pumpkin0.98%
3 day VIP Longtimer0.96%