hash-investigation

Aggregate multi-source threat intel to characterize file hashes and produce pivot-ready output.

15|5|Updated Apr 6, 2026
One-click install
npx skills add https://github.com/Liberty91LTD/cti-skills --skill hash-investigation
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: hash-investigation
Source: https://github.com/Liberty91LTD/cti-skills/tree/main/skills/hash-investigation
Command: npx skills add https://github.com/Liberty91LTD/cti-skills --skill hash-investigation

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Identify and characterize a file hash by aggregating multi-source threat intel to support rapid malware attribution and pivot planning.

Core Features & Use Cases

  • Parallel lookups to surface detection stats, related malware families, and behavior tags from multiple sources.
  • Consolidated verdicts and pivots for incident response and IOC triage.
  • Use Case: When a hash appears in an investigation, quickly determine if it is benign or malicious and identify potential C2 infrastructure or dropped files.

Quick Start

Run hash-investigation on a suspect hash to obtain a structured risk assessment and actionable pivots.

Frequently Asked Questions about hash-investigation

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I investigate a file hash to check if it is malicious malware?

To investigate a file hash and check for malicious malware, you can aggregate multi-source threat intel to surface detection stats, related malware families, and behavior tags. This provides a consolidated verdict for rapid attribution.

What is the best way to perform threat intel pivoting on a file hash?

The best way to perform threat intel pivoting on a file hash is to run parallel lookups across sources like VirusTotal and OTX, consolidating the results into a structured, pivot-ready output to identify potential C2 infrastructure or dropped files.

Can I use this hash investigation approach for IOC triage during incident response?

Yes, you can use this hash investigation approach for IOC triage during incident response. It validates hash formats and applies multi-source lookups to IOC lists, producing consolidated verdicts that help prioritize incidents.

How does aggregating threat intel from VirusTotal and OTX characterize an unknown hash?

Aggregating threat intel from VirusTotal and OTX characterizes an unknown hash by running parallel lookups to consolidate detection statistics and behavior tags. This process identifies related malware families and enables malware attribution.

Do I need to validate a hash format before performing malware attribution and pivoting?

Yes, you need to validate the hash format before performing malware attribution and pivoting. Format validation ensures the hash is structurally correct, which is required before executing parallel lookups across threat intel sources.

What limitations exist when using multi-source threat intel to analyze file hashes?

A limitation when using multi-source threat intel to analyze file hashes is that the characterization depends entirely on the detection coverage of the queried sources. If a source lacks telemetry for a specific threat, pivoting and attribution results may be incomplete.