Introduction
Accurate and actionable threat intelligence is critical for effective incident response, but enriching Indicators of Compromise (IOCs) such as IPs, domains, and file hashes can be a resource-intensive process. The IOC Enrichment playbook automates this workflow by leveraging integrations with multiple tools to provide comprehensive contextual data on IOCs, enabling faster and more informed decision-making.
Challenges Faced
Data Overload: SOC analysts often struggle to manually gather information from various tools to verify and enrich IOCs.
Time-Consuming Investigations: Manually collecting and correlating threat intelligence delays response times.
Incomplete Context: Inconsistent enrichment leads to gaps in understanding the potential impact of an IOC.
How SIRP Solves This
The IOC Enrichment playbook centralizes and automates the enrichment process, providing a unified view of contextual data for IOCs.
Automated Reputation Checks
Using integrations with tools like AlienVault OTX and Crowdstrike, the playbook enriches IPs, domains, and URLs with detailed reputation data.
Artifact Analysis
The playbook validates hashes (MD5, SHA1, SHA256) against threat intelligence databases to determine their reputation.
It pulls hostname details, including OS, MAC address, and active processes, using Microsoft LDAP.
CVE Details
For vulnerabilities, the playbook uses Circl CVE Search to retrieve detailed information about CVEs, including severity, exploitability, and mitigation recommendations.
Real-Time Updates
All enriched data is collated and shared with the SOC team in real time, ensuring they have the necessary context to act swiftly and accurately.
Playbook Integrations
AlienVault OTX: Provides IP, domain, and URL reputation data.
Circl CVE Search: Retrieves detailed information on vulnerabilities (CVEs).
Microsoft LDAP: Gathers detailed host information such as OS, MAC, and active processes.
Crowdstrike: Delivers additional enrichment for IOCs, including hash reputations.
Playbook Inputs
IP: Internet Protocol addresses to be analyzed.
Domain: Domains associated with the alert.
URL: Links flagged in the threat alert.
MD5/SHA1/SHA256: Hashes of suspicious files.
Username: User accounts under investigation.
Hostname: Names of devices associated with the alert.
CVE: Vulnerabilities identified in the threat report.
Playbook Outputs
IP Reputation: Provides insight into whether the IP is malicious or benign.
Domain Reputation: Offers detailed data on domain trustworthiness.
Host Details: Includes OS, MAC address, and active processes for hostnames.
URL Reputation: Assesses whether URLs are safe or malicious.
Hash Reputation: Enriches file hashes with data on malicious indicators.
CVE Details: Supplies information on vulnerabilities and their impact.
The SIRP Playbook
Key Benefits
Faster IOC Analysis: Automation accelerates the time required to gather and analyze IOC data.
Improved Decision-Making: Comprehensive enrichment enables analysts to make informed decisions.
Centralized Insights: Unified reporting reduces the need to switch between multiple tools.
Enhanced Accuracy: By integrating multiple data sources, the playbook ensures consistent and reliable enrichment.
FAQs
Can additional tools be integrated into this playbook?
Yes, the playbook is flexible and can integrate with additional tools or data sources as required.
Does this playbook support bulk enrichment?
Yes, the playbook can handle multiple IOCs simultaneously for bulk enrichment scenarios.
Can the enriched data be exported for offline use?
Absolutely, the enriched IOC data can be exported in formats like CSV or JSON for further analysis or reporting.