A file's metadata from one workstation, and the firewall's record of what that workstation was doing.
The file claims to have been created, modified and last accessed at one moment in February. The firewall says something else happened in March. Both are telling the truth about different things.
Three of the four file timestamps can be set to whatever a program likes. One of them is maintained by the filesystem itself and is awkward to forge. Put every timestamp on one axis, see which cluster each falls into, and name the field that agrees with the firewall.
Submit it as the flag, exactly as it is labelled: skrd{...}.