Microsoft Office is a widely used software throughout the world. Macros are an extremely old feature in Microsoft Office. A macro is a small program that can be embedded in an office document. It can be considered as a set of recorded commands that can be replayed again with a keyboard shortcut or click. This saves a lot of time and effort for people who work on Excel sheets, Word documents, and so on. The misuse of macros has also been going on for a long time. Earlier versions of Microsoft Office had macros enabled by default so opening a malicious macro document would immediately execute the malicious macro in it. Visual Basic for Applications (VBA) is a programming language that can be used to create macros for Microsoft Excel. Macros can also be used to download malware. A Word document with malicious macros can be sent across a spam email to the victim. Locky ransomware can be downloaded using macros.
If you want to learn how to analyze malicious Word documents...