Malicious PDF — malware analysis report

Static analysis result for SHA-256 1512675150191bbe…

MALICIOUS

PDF

185.8 KB Created: 2017-11-29 09:39:46 -08:00 Authoring application: Microsoft® Word 2016
MD5: c0153f53b0867b112b48ea5d8c23ec36 SHA-1: cd924eed7c56770e7fa9b197e33c9ec8a7fded7c SHA-256: 1512675150191bbe7d3eb3deaab03d835e38f87dd9463676a2f76ae6bd4fe628
84 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is detected as a dropper by ClamAV and exhibits characteristics of a phishing lure, being image-only with a clickable action. The embedded URI points to 'http://www.settlementslaw.com/closing/docusi', which is likely the next stage of the attack. No scripts were extracted, but the PDF structure and heuristic firings strongly suggest a malicious intent to redirect the user to a harmful resource.

Machine Learning

  • Nyx PDF Classifier clean score 0.0239

Heuristics 4

  • ClamAV: Pdf.Dropper.Agent-7232164-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7232164-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 2 image(s), only 0 text block(s), carries a click-outward action, and is only 185 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.settlementslaw.com/closing/docusi
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/pdf/1.3/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/

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