Which exploitation vector targets common office applications such as Microsoft Office via spearphishing with links to malicious files?

Which exploitation vector targets common office applications such as Microsoft Office via spearphishing with links to malicious files?

• A. Office-Applications-Based Exploitation
• B. Web-Browser-Based Exploitation
• C. Third-Party Applications-Based Exploitation
• D. Service Execution

Answer: (A)

The main idea here is that attackers use a targeted phishing email to lure a user into opening or clicking a malicious Office document. Once the user interacts with the file, Office applications like Word or Excel can execute embedded code (such as macros) or exploit a vulnerability in the document. This makes the Office suite the attack surface and uses the trusted document flow to deliver and trigger the payload. It’s distinct from exploits that rely on a web browser, another third‑party app, or a service-level compromise, because the delivery and initial exploitation hinge on Office itself being opened and executed via the malicious document.

The main idea here is that attackers use a targeted phishing email to lure a user into opening or clicking a malicious Office document. Once the user interacts with the file, Office applications like Word or Excel can execute embedded code (such as macros) or exploit a vulnerability in the document. This makes the Office suite the attack surface and uses the trusted document flow to deliver and trigger the payload. It’s distinct from exploits that rely on a web browser, another third‑party app, or a service-level compromise, because the delivery and initial exploitation hinge on Office itself being opened and executed via the malicious document.