analyzing-macro-malware-in-office-documents

by mukul975

analyzing-macro-malware-in-office-documents helps malware analysts inspect malicious VBA in Word, Excel, and PowerPoint files, decode obfuscation, and extract IOCs, execution paths, and payload staging logic for phishing triage, incident response, and document malware analysis.

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AddedMay 11, 2026

CategoryMalware Analysis

Install Command

npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill analyzing-macro-malware-in-office-documents

Curation Score

This skill scores 83/100, which means it is a solid listing candidate for directory users who need Office macro malware analysis. The repository gives a clear activation scope, concrete tooling references, and a real analysis workflow, so users can judge fit and install with relatively little guesswork.

83/100

Strengths

Clear triggerability for suspicious Office documents, VBA malware, maldocs, and phishing attachments.
Operational workflow is backed by specific tooling references and CLI examples for olevba, oleid, and oledump.
Substantial, non-placeholder content with a dedicated analysis script and reference docs improves agent leverage.

Cautions

No install command in SKILL.md, so setup may require manual environment preparation and tool installation.
The skill is focused on macro-based Office malware; users handling non-macro document attacks may need a different skill or additional methods.

Office DOCX Macro Vba Phishing Malware Deobfuscation

Overview

Overview of analyzing-macro-malware-in-office-documents skill

What this skill does

The analyzing-macro-malware-in-office-documents skill helps analyze malicious VBA macro content in Office files such as Word, Excel, and PowerPoint documents. It is built for malware analysts who need to identify the macro’s execution path, decode obfuscation, and extract indicators like URLs, commands, and payload staging logic.

Who it is for

Use the analyzing-macro-malware-in-office-documents skill if you work on phishing triage, document malware analysis, incident response, or threat hunting on suspicious .docm, .xlsm, .pptm, or legacy macro-enabled files. It is most useful when you need more than a generic prompt and want a repeatable workflow for Office macro inspection.

What makes it useful

This skill is centered on practical VBA analysis, not broad Office forensics. Its value is in helping you move from “suspicious attachment” to an actual attack chain: auto-execution trigger, deobfuscated macro logic, extracted IOCs, and likely next-stage behavior. That makes the analyzing-macro-malware-in-office-documents skill a good fit for Malware Analysis workflows where speed and structure matter.

How to Use analyzing-macro-malware-in-office-documents skill

Install and read the right files first

Install with:
npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill analyzing-macro-malware-in-office-documents

For setup, start with SKILL.md, then inspect references/api-reference.md and scripts/agent.py. Those two files are the most useful for understanding the analyzing-macro-malware-in-office-documents install path, the toolchain it expects, and the kind of outputs you should ask for.

Give the skill a concrete malware question

The analyzing-macro-malware-in-office-documents usage pattern works best when you give it a file type, suspicion reason, and analysis goal. Strong inputs look like: “Analyze this .docm for macro auto-execution, deobfuscate any VBA, and extract URLs, PowerShell commands, and persistence logic.” Weak inputs like “check this document” leave too much room for generic output.

Use a workflow that matches the repository

A practical analyzing-macro-malware-in-office-documents guide is:

Triage the document for macro presence and other risky features.
Extract VBA with olevba or the repository’s script.
Decode obfuscation and review AutoExec, Suspicious, and IOC output.
Confirm whether the macro downloads, drops, or launches a payload.
Summarize findings with file type, trigger, indicators, and analyst notes.

Watch for fit and output limits

This skill is strongest when macros are present or suspected. If the file uses only non-macro abuse, such as pure link-based lures or non-VBA document tricks, you may need a different analysis path. For best results, include the sample name, file extension, and any known triage results so the skill can focus on the right branch of analysis.

analyzing-macro-malware-in-office-documents skill FAQ

Is this only for VBA macros?

Mostly yes. The skill is designed around VBA macro extraction and deobfuscation, with some awareness of related document abuse. If your case is not macro-driven, the analyzing-macro-malware-in-office-documents skill may be the wrong first tool.

Do I need to know malware analysis already?

No, but you do need a basic understanding of suspicious Office documents and why macros are dangerous. Beginners can use the skill, especially if they provide a clear sample and ask for a step-by-step breakdown instead of a high-level summary.

How is this different from a normal prompt?

A normal prompt can ask for Office macro analysis, but this skill gives you a narrower workflow and a better starting point for consistent results. The analyzing-macro-malware-in-office-documents skill is more useful when you want repeatable triage, tool-aware guidance, and analysis output that is easier to operationalize.

When should I not use it?

Do not use it as your primary skill if you are analyzing a document that has no macros, or if the main problem is PDF, script, or network malware rather than Office VBA. In those cases, the analyzing-macro-malware-in-office-documents for Malware Analysis flow will be too specific and may slow you down.

How to Improve analyzing-macro-malware-in-office-documents skill

Provide sample context that changes the analysis

The best improvements come from better inputs: file type, source of the document, delivery vector, and what looked suspicious. Saying “downloaded from phishing email, .xlsm, user reported a password prompt and outbound traffic” gives the analyzing-macro-malware-in-office-documents skill much more to work with than a bare filename.

Ask for the exact artifacts you need

If you care about detection or incident response, say so up front. Request extracted IOCs, macro entry points, deobfuscated code, suspicious API usage, or a concise kill chain. That keeps the result focused and avoids generic narrative.

Iterate on the first pass

If the first output is too shallow, ask the skill to re-check the specific module, stream, or macro routine that matters. Follow-up prompts work best when they reference a concrete finding, such as an AutoOpen trigger, a decoded URL, or a suspicious Shell command, so the next pass can go deeper instead of repeating the same summary.

Use repository artifacts to tighten results

For higher-quality analyzing-macro-malware-in-office-documents usage, align your prompt with the repository’s observable workflow: triage first, then extraction, then deobfuscation, then IOC review. If you already have olevba or oledump output, include it. That reduces guesswork and makes the skill more accurate for Office macro malware cases.

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