What it does. Automates phishing incident response by calling the Splunk SOAR (Phantom) Part of mukul975/Anthropic-Cybersecurity-Skills (817 security skills) (mukul975/Anthropic-Cybersecurity-Skills).

Install

• npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill implementing-soar-playbook-for-phishing, or copy the skill folder into ~/.claude/skills/implementing-soar-playbook-for-phishing/.
• Raw file: curl -sL https://raw.githubusercontent.com/mukul975/Anthropic-Cybersecurity-Skills/HEAD/skills/implementing-soar-playbook-for-phishing/SKILL.md

SKILL.md (verbatim)

name: implementing-soar-playbook-for-phishing
description: Automates phishing incident response by calling the Splunk SOAR (Phantom)
  REST API to create containers, attach artifacts (emails, URLs, attachments), and
  trigger response playbooks. Use when building or wiring up a Splunk SOAR phishing
  playbook, ingesting a suspected phishing report into SOAR, or automating containment
  and triage for phishing incidents.
domain: cybersecurity
subdomain: security-operations
tags:
- soar
- splunk-phantom
- phishing
- incident-response
version: '1.0'
author: mahipal
license: Apache-2.0
nist_csf:
- DE.CM-01
- RS.MA-01
- GV.OV-01
- DE.AE-02
mitre_attack:
- T1078
- T1190
- T1059
- T1566
- T1598
mitre_f3:
  version: '1.1'
  tactics:
  - reconnaissance
  - resource-development
  - initial-access
  - stealth
  techniques:
  - id: T1598
    name: Phishing for Information
    tactic: reconnaissance
    source: attack
  - id: T1660
    name: Phishing
    tactic: initial-access
    source: attack
  - id: T1672
    name: Email Spoofing
    tactic: stealth
    source: attack
  - id: F1020.002
    name: 'Create Fake Materials: Fake Website'
    tactic: resource-development
    source: f3
  - id: F1032
    name: Impersonate Official
    tactic: initial-access
    source: f3

Implementing SOAR Playbook for Phishing

Overview

This skill implements a phishing incident response workflow using the Splunk SOAR (formerly Phantom) REST API. When a suspected phishing email is reported, the agent parses email headers and body, creates a SOAR container representing the incident, attaches artifacts containing indicators of compromise (sender address, URLs, IP addresses, file hashes), triggers an automated investigation playbook, and polls for action results.

Splunk SOAR orchestrates and automates security operations through playbooks that chain together investigative and response actions. The REST API at /rest/container, /rest/artifact, and /rest/playbook_run enables programmatic incident creation and automation triggering from external tools, email gateways, and SIEM alerts.

When to Use

• When deploying or configuring implementing soar playbook for phishing capabilities in your environment
• When establishing security controls aligned to compliance requirements
• When building or improving security architecture for this domain
• When conducting security assessments that require this implementation

Prerequisites

• Python 3.9 or later with requests and email modules
• Splunk SOAR instance (Cloud or On-Premises) with REST API access
• SOAR API token with permissions to create containers and trigger playbooks
• Network connectivity to SOAR instance on port 443
• A configured phishing investigation playbook in SOAR

Steps

1. Parse the phishing email: Read the email file (.eml format) and extract headers including From, To, Subject, Reply-To, Return-Path, Received, Message-ID, X-Mailer, and authentication results (SPF, DKIM, DMARC). Extract URLs and IP addresses from the email body.

2. Authenticate to SOAR REST API: Use the API token in the ph-auth-token header to authenticate all REST API requests to the SOAR instance.

3. Create a container: POST to /rest/container with the incident label, name, description, severity, and status. The container represents the phishing incident and receives a container ID in the response.

4. Add email header artifacts: POST to /rest/artifact with container_id and CEF (Common Event Format) fields containing sender address (fromAddress), recipient (toAddress), subject, originating IP (sourceAddress), and Message-ID. Set run_automation to False for all but the last artifact.

5. Add URL artifacts: For each URL extracted from the email body, create an artifact with CEF field requestURL and type url. These artifacts feed into URL reputation checks in the playbook.

6. Trigger the playbook: POST to /rest/playbook_run with the playbook ID or name and the container ID. This initiates the automated investigation workflow.

7. Poll action results: GET /rest/action_run filtered by container ID to monitor playbook progress. Poll until all actions reach a terminal state (success, failed, or cancelled).

8. Compile response report: Aggregate playbook action results into a summary report with verdicts from URL reputation, domain reputation, IP geolocation, and email header analysis.

Expected Output

{
  "incident": {
    "container_id": 1542,
    "status": "new",
    "severity": "high",
    "artifacts_created": 5
  },
  "playbook": {
    "name": "phishing_investigate",
    "run_id": 892,
    "status": "success",
    "actions_completed": 8
  },
  "verdict": "malicious",
  "indicators": {
    "sender_domain_reputation": "malicious",
    "urls_flagged": 2,
    "spf_result": "fail",
    "dkim_result": "fail"
  }
}

Other files in this skill

• LICENSE
• references/api-reference.md
• scripts/agent.py

references/api-reference.md (verbatim)

SOAR Phishing Playbook API Reference

Splunk SOAR REST API

Authentication

All requests require the ph-auth-token header:

ph-auth-token: <your-api-token>

Create Container (Incident)

POST /rest/container

{
  "name": "Phishing: Suspicious invoice email",
  "description": "User reported phishing email",
  "label": "phishing",
  "severity": "high",
  "status": "new",
  "sensitivity": "amber",
  "owner_id": 1,
  "tags": ["phishing", "email"]
}

Response: {"success": true, "id": 1542}

Create Artifact

POST /rest/artifact

{
  "container_id": 1542,
  "name": "Sender Email",
  "label": "email",
  "type": "email",
  "severity": "high",
  "cef": {
    "fromAddress": "attacker@evil.com",
    "toAddress": "victim@company.com",
    "emailSubject": "Urgent Invoice #9921",
    "sourceAddress": "198.51.100.23",
    "requestURL": "https://evil-phish.com/login"
  },
  "run_automation": true
}

Response: {"success": true, "id": 8834}

Trigger Playbook

POST /rest/playbook_run

{
  "container_id": 1542,
  "playbook_id": "local/phishing_investigate",
  "scope": "new",
  "run": true
}

List Action Runs

GET /rest/action_run?_filter_container=1542&page_size=100

Get Container Details

GET /rest/container/{container_id}
GET /rest/container/{container_id}/artifacts
GET /rest/container/{container_id}/actions

Update Container Status

POST /rest/container/{container_id}

{"status": "closed", "close_reason": "resolved"}

XSOAR (Cortex XSOAR) API Comparison

Create Incident

POST /incident

{
  "name": "Phishing Report",
  "type": "Phishing",
  "severity": 3,
  "labels": [
    {"type": "Email/from", "value": "attacker@evil.com"},
    {"type": "Email/subject", "value": "Urgent Invoice"}
  ]
}

Run Playbook on Incident

POST /incident/investigate

{"id": "1542", "playbookId": "phishing_investigation"}

Common Phishing Playbook Actions

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