Initial SOC memory POC implementation

evaluation/datasets/normalized_cases/CASE-2026-0002.json

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+{
+  "id": "CASE-2026-0002",
+  "memory_type": "case",
+  "scenario": "phishing",
+  "title": "Payroll notification email flagged but determined benign",
+  "abstract": "Payroll update email was flagged due to a shortened URL, but the destination was the approved HR vendor portal.",
+  "verdict": "false_positive",
+  "severity": "medium",
+  "entities": {
+    "users": [
+      "bob@corp.example"
+    ],
+    "hosts": [
+      "HR-LAPTOP-03"
+    ],
+    "mailboxes": [
+      "bob@corp.example"
+    ]
+  },
+  "observables": {
+    "sender_emails": [
+      "notify@hr-vendor.example"
+    ],
+    "domains": [
+      "hr-vendor.example"
+    ],
+    "urls": [
+      "https://bit.ly/hr-portal-example"
+    ],
+    "ips": [],
+    "hashes": []
+  },
+  "evidence": [
+    "Sender domain aligned with SPF and DKIM.",
+    "Destination domain matched approved supplier inventory.",
+    "No credential prompt anomaly observed."
+  ],
+  "patterns": [
+    "verdict:false_positive",
+    "scenario:phishing",
+    "alert_type:mail_suspicious_link"
+  ],
+  "related_refs": {
+    "playbooks": [
+      "PB-PHISH-001"
+    ],
+    "kb": [
+      "KB-PHISH-HEADER-CHECK"
+    ],
+    "cases": []
+  },
+  "source_path": "/home/tom/soc_memory_poc/evaluation/datasets/mock_cases/phishing/CASE-2026-0002.json",
+  "tags": [
+    "phishing",
+    "email",
+    "false-positive",
+    "vendor"
+  ]
+}