fix: Avoid creating a signer info object when the pe is not signed
fix: Avoid creating a signer info object when the pe is not signed

MISP/misp-modules,VirusTotal/misp-modules,VirusTotal/misp-modules,MISP/misp-modules,amuehlem/misp-modules,amuehlem/misp-modules,VirusTotal/misp-modules,amuehlem/misp-modules,MISP/misp-modules