Not Laughing: Malicious Office Documents using LoLBins
Attackers have long used phishing emails with malicious Microsoft Office documents, often hosted in popular cloud apps like Box and Amazon S3 to increase the chances of a successful lure. The techniques being used with Office documents are continuing to evolve. In August – September of 2020, we analyzed samples that used advanced techniques like: In January 2021, we examined samples that use obfuscation and embedded XSL scripts to download payloads.