tl;dr plot mouse movements from pcap
The given pcap file contains usb mouse traffic, knowing that certain bytes in LeftoverCaptureData contain relative mouse movement, we can easily export the needed data and plot the movements: plotMouse.py
After running it we get a nice graph that has our upside down flag ;)
If our LeftoverCaptureData is "01234567", then
"01" = button pressed (0 = nothing, 1 = rpm, etc...)
"23" = signed x movement
"45" = signed y movement
We used python+bokeh for plotting, the unsigned to signed conversion was kinda tricky: if x >= 1<<7: x -= 1<<8