Case #547 — Agentic Cyber Defense

medium closed suspicious

🏷️ Analyst Verdict Classification

FP by analyst

🤖 AI Analysis

🔔 Detections (1)

New Code Atypical Path medium

Rule: general.NEW FILE WRITE BYTES SAMPLE GRAB

Hostname: win-91lccq536b4 · Sensor: f8e98d83-79d8-4f...

Event Type: NEW_DOCUMENT

Confidence: 0% · Verdict: suspicious

Event Data:

FILE_PATH:

C:\Users\pjhow\AppData\Local\Temp\{AA8E5A6C-52AF-40FE-A1A7-CE16F19591AF}-MicrosoftEdge_X64_146.0.3856.80.exe

HASH:

c47f79ae488457a7295b4bda65a75614c01573aa57b8baa599c8dbcf8b961229

PROCESS_ID:

1360

Analyst Declaration:

📄 Raw Detection JSON

{
  "author": "ckeller@fusioncybersecurity.us",
  "cat": "New Code Atypical Path",
  "detect": {
    "event": {
      "FILE_PATH": "C:\\Users\\pjhow\\AppData\\Local\\Temp\\{AA8E5A6C-52AF-40FE-A1A7-CE16F19591AF}-MicrosoftEdge_X64_146.0.3856.80.exe",
      "HASH": "c47f79ae488457a7295b4bda65a75614c01573aa57b8baa599c8dbcf8b961229",
      "PROCESS_ID": 1360
    },
    "routing": {
      "arch": 2,
      "did": "",
      "event_id": "19426785-a05f-43e1-bcf1-4beb6217b8de",
      "event_time": 1774391020985,
      "event_type": "NEW_DOCUMENT",
      "ext_ip": "23.128.32.10",
      "hostname": "win-91lccq536b4",
      "iid": "b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175",
      "int_ip": "192.168.50.170",
      "latency": 70728,
      "moduleid": 2,
      "oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
      "parent": "4f7c5f52c532538ca58a606569c2decb",
      "plat": 268435456,
      "sid": "f8e98d83-79d8-4ff7-9fe1-7c507dad89e4",
      "tags": [
        "frontdesk",
        "fusion-soc-alert",
        "fusion-soc-case",
        "fusion-soc-pulled",
        "fusion-soc-triage",
        "fusionsoc-critical",
        "fusionsoc-investigated",
        "windows",
        "yara_detection_memory"
      ],
      "this": "cdadb735e16dd693966e49cf69c30ef3"
    }
  },
  "detect_id": "4da4b599-86fc-4225-9d87-425a69c30f33",
  "gen_time": 1774391091713,
  "link": "https://app.limacharlie.io/orgs/d3541070-8b0e-4663-8a6a-aa0727aacd36/sensors/f8e98d83-79d8-4ff7-9fe1-7c507dad89e4/timeline?time=1774391020\u0026selected=cdadb735e16dd693966e49cf69c30ef3",
  "namespace": "general",
  "routing": {
    "arch": 2,
    "did": "",
    "event_id": "19426785-a05f-43e1-bcf1-4beb6217b8de",
    "event_time": 1774391020985,
    "event_type": "NEW_DOCUMENT",
    "ext_ip": "23.128.32.10",
    "hostname": "win-91lccq536b4",
    "iid": "b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175",
    "int_ip": "192.168.50.170",
    "latency": 70728,
    "moduleid": 2,
    "oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
    "parent": "4f7c5f52c532538ca58a606569c2decb",
    "plat": 268435456,
    "sid": "f8e98d83-79d8-4ff7-9fe1-7c507dad89e4",
    "tags": [
      "frontdesk",
      "fusion-soc-alert",
      "fusion-soc-case",
      "fusion-soc-pulled",
      "fusion-soc-triage",
      "fusionsoc-critical",
      "fusionsoc-investigated",
      "windows",
      "yara_detection_memory"
    ],
    "this": "cdadb735e16dd693966e49cf69c30ef3"
  },
  "source": "d3541070-8b0e-4663-8a6a-aa0727aacd36.b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175.f8e98d83-79d8-4ff7-9fe1-7c507dad89e4.10000000.2",
  "source_rule": "general.NEW FILE WRITE BYTES SAMPLE GRAB",
  "ts": 1774391092000
}

🌍 Threat Intel JSON

{
  "virustotal": {
    "error": "Not found in VT",
    "malicious": false,
    "provider": "virustotal"
  }
}

🤖 Triage JSON

{
  "confidence": 0.0,
  "error": "llm_unavailable",
  "false_positive_reason": null,
  "investigation_questions": [],
  "iocs_extracted": [],
  "mitre_techniques": [],
  "recommended_actions": [
    "Manual review required"
  ],
  "risk_score": 50,
  "severity": "medium",
  "summary": "LLM analysis unavailable \u2014 all models failed. Manual review required.",
  "verdict": "suspicious"
}

⚙️ Response Actions

Action	Target	Status	Result
tag	f8e98d83-79d8-4ff7-9fe1-7c507dad89e4:fusionsoc-investigated	executed	Tag applied
recommended	Manual review required	executed	General Activity Sweep: 0 events found

📝 Add Note

💬 Notes (2)

🤖 FusionSOC AI 2026-03-24T22:33

📜 Timeline

2026-03-24T23:15:50

analyst

Status changed: investigating → closed

2026-03-24T23:15:48

analyst

Analyst classified as False Positive (FP)

2026-03-24T22:33:47

FusionSOC AI

Status changed: open → investigating

2026-03-24T22:33:47

FusionSOC

Action recommended → executed: General Activity Sweep: 0 events found

2026-03-24T22:33:47

FusionSOC AI

Note by FusionSOC AI: ## 🔍 General Activity Sweep **Action:** Manual review required **Sensor:** `f8e98d83-79d8-4f...` **Time Window:** +/- 2 ...

2026-03-24T22:33:46

FusionSOC

Response action queued: recommended on Manual review required

2026-03-24T22:33:46

FusionSOC

Action tag → executed: Tag applied

2026-03-24T22:33:46

FusionSOC

Response action queued: tag on f8e98d83-79d8-4ff7-9fe1-7c507dad89e4:fusionsoc-investigated

2026-03-24T22:33:45

FusionSOC AI

Detection 4da4b599-86fc-4225-9d87-425a69c30f33 triaged as suspicious (medium severity, confidence: 0%)

2026-03-24T22:33:45

FusionSOC AI

Case created from detection: general.NEW FILE WRITE BYTES SAMPLE GRAB