{
  "author": "ckeller@fusioncybersecurity.us",
  "cat": "New Code Atypical Path",
  "detect": {
    "event": {
      "FILE_PATH": "C:\\Users\\Joy Howell\\AppData\\Local\\Temp\\{BD20A85A-0E90-40B0-94D5-5B4FCAF49724}-MicrosoftEdge_X64_146.0.3856.62_145.0.3800.97.exe",
      "HASH": "482f3c8c01d946b0f154e7e60420e511a9b4ba04e2b02797aba4e149154375c1",
      "PROCESS_ID": 11316
    },
    "routing": {
      "arch": 2,
      "did": "",
      "event_id": "e496d97a-c21a-4db0-8855-1092736b4a72",
      "event_time": 1773761659208,
      "event_type": "NEW_DOCUMENT",
      "ext_ip": "23.128.32.10",
      "hostname": "desktop-atsepsk",
      "iid": "b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175",
      "int_ip": "192.168.50.200",
      "latency": 1354,
      "moduleid": 2,
      "oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
      "parent": "15b026aa8514642d084a262969b0ff42",
      "plat": 268435456,
      "sid": "8f3a47be-5629-4c66-921d-17c39ed07e87",
      "tags": [
        "fusion-soc-alert",
        "fusion-soc-case",
        "fusion-soc-pulled",
        "fusion-soc-triage",
        "fusionsoc-critical",
        "fusionsoc-high",
        "fusionsoc-investigated",
        "joys",
        "windows",
        "yara_detection_disk",
        "yara_detection_memory"
      ],
      "this": "001e0311dfd9dfaa971bb56769b9747c"
    }
  },
  "detect_id": "adc6ae76-9f23-4fe0-9b4f-fdd669b9747c",
  "gen_time": 1773761660563,
  "link": "https://app.limacharlie.io/orgs/d3541070-8b0e-4663-8a6a-aa0727aacd36/sensors/8f3a47be-5629-4c66-921d-17c39ed07e87/timeline?time=1773761659\u0026selected=001e0311dfd9dfaa971bb56769b9747c",
  "namespace": "general",
  "routing": {
    "arch": 2,
    "did": "",
    "event_id": "e496d97a-c21a-4db0-8855-1092736b4a72",
    "event_time": 1773761659208,
    "event_type": "NEW_DOCUMENT",
    "ext_ip": "23.128.32.10",
    "hostname": "desktop-atsepsk",
    "iid": "b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175",
    "int_ip": "192.168.50.200",
    "latency": 1354,
    "moduleid": 2,
    "oid": "d3541070-8b0e-4663-8a6a-aa0727aacd36",
    "parent": "15b026aa8514642d084a262969b0ff42",
    "plat": 268435456,
    "sid": "8f3a47be-5629-4c66-921d-17c39ed07e87",
    "tags": [
      "fusion-soc-alert",
      "fusion-soc-case",
      "fusion-soc-pulled",
      "fusion-soc-triage",
      "fusionsoc-critical",
      "fusionsoc-high",
      "fusionsoc-investigated",
      "joys",
      "windows",
      "yara_detection_disk",
      "yara_detection_memory"
    ],
    "this": "001e0311dfd9dfaa971bb56769b9747c"
  },
  "source": "d3541070-8b0e-4663-8a6a-aa0727aacd36.b2cd59fc-d09d-49e0-a9f2-1fd79ee9c175.8f3a47be-5629-4c66-921d-17c39ed07e87.10000000.2",
  "source_rule": "general.NEW FILE WRITE BYTES SAMPLE GRAB",
  "ts": 1773761661000
}

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

{
  "confidence": 0.95,
  "false_positive_reason": "Microsoft Edge installer files in Temp directory are legitimate during browser updates. Historical analyst feedback consistently marks similar detections as false positives.",
  "investigation_questions": [
    "Is Microsoft Edge installation/update scheduled on this host?",
    "Has the user recently installed or updated their browser?"
  ],
  "ioc_analysis": "The file path contains \u0027MicrosoftEdge_X64\u0027 indicating it is related to Microsoft Edge browser. The presence of version numbers (146.0.3856.62 and 145.0.3800.97) suggests this is a legitimate update or installation process. Historical analyst feedback consistently marks similar detections as false positives.",
  "iocs_extracted": [
    {
      "type": "file_path",
      "value": "C:\\Users\\Joy Howell\\AppData\\Local\\Temp\\{BD20A85A-0E90-40B0-94D5-5B4FCAF49724}-MicrosoftEdge_X64_146.0.3856.62_145.0.3800.97.exe"
    }
  ],
  "mitre_techniques": [],
  "recommended_actions": [
    "Manual analyst review required \u2014 AI models disagree or one model failed",
    "Allow detection to pass as false positive",
    "Monitor for any subsequent suspicious behavior from this file"
  ],
  "risk_score": 10,
  "severity": "high",
  "summary": "**Vote: SPLIT (1/2 -\u003e SUSPICIOUS)**\n\n### \u264a Gemini Analysis (Primary)\nFailed or timed out.\n\n---\n\n### \ud83e\udd16 Qwen Analysis (Secondary)\n**Verdict:** false_positive | **Confidence:** 0.95\nThis detection is a false positive because the file path indicates Microsoft Edge browser installation files in the Temp directory, which is common for legitimate software updates or installations.\n\n**IOC Analysis:** The file path contains \u0027MicrosoftEdge_X64\u0027 indicating it is related to Microsoft Edge browser. The presence of version numbers (146.0.3856.62 and 145.0.3800.97) suggests this is a legitimate update or installation process. Historical analyst feedback consistently marks similar detections as false positives.",
  "verdict": "suspicious",
  "voting": {
    "auto_action": "manual_review",
    "mode": "split",
    "total_models": 2,
    "vote_summary": [
      "qwen3.5:4b: false_positive (low, 95% confidence)"
    ],
    "votes": [],
    "winning_count": 1,
    "winning_verdict": "suspicious"
  }
}