Air carrier First Officer reported the Captain had to abruptly apply the brakes to avoid a collision with a truck on Taxiway Charlie at LAX airport.

Narrative

After being cleared to cross to Runway 25R after landing on Runway 25L; Ground called us and gave us a taxi clearance to the south side. All of this occurred while we were still moving and we began to taxi via Quebec as instructed to turn right on Charlie. As we approached Charlie a truck pulling three cargo containers ran directly in front of us. All of our appropriate lights were on and the night was clear and well lit. The truck was driving aggressively and much faster than normal; especially for how congested the taxiways were with other aircraft. The Captain stopped the aircraft to avoid the collision. [Another] aircraft apparently witnessed the situation and commented as well on ground. Ground called Ops to investigate further. We resumed our taxi to the gate with no further issues. Ground did say that it happens far too often. Better training [is required] for people being allowed to drive on airport grounds by their employers. If it is happening a lot; obviously the city needs to take it more seriously. It's outside of company hands; but I felt it was important to report this.