Recon managed to capture some web traffic from OmniFlags and think they are onto something. It looks like they are transferring something but we cannot read it.
HQ
I Spy A Picture
We're given a network packet, which we can open with Wireshark
It looks like a request was made to get Password.PNG
In a later packet, we can see this request was succesful:
Looks like the TCP packets are carrying the PNG data. We can export this data with File > Export Object > HTTP