From Paragon Wiki
Bombs appear on various maps and missions. They come in two main varieties:
- hostile, destructable bombs: If defeated, they will explode causing AoE damage to both characters AND critters within the blast radius. (needs damage types)
- clickable glowie bombs: After being disarmed, they will harmlessly deactivate or disappear. Some versions, including bombs in the bonus sections of Safeguard Missions, will explode if they are not disarmed in time, resulting in damage and failure.
It looks like this bomb is rigged to detonate when approached.