Malicious PDF — malware analysis report

Static analysis result for SHA-256 4212679bab8fb2d4…

MALICIOUS

PDF

185.8 KB Created: 2017-11-21 10:36:18 -08:00 Authoring application: Microsoft® Word 2016
MD5: 3f896a25824d4ee8f83a34a64272e995 SHA-1: 0d82899fb90fce64f666fb2ea3c179ae910e2763 SHA-256: 4212679bab8fb2d4c867b8f9b95483a3087b7b3afacab9c864d5067751a74d7e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF exhibits characteristics of a phishing lure, being image-heavy with minimal text and containing a click-outward action. ClamAV identifies it as Pdf.Dropper.Agent-7254556-0, suggesting it acts as a dropper for other malicious content. The embedded URL http://www.cpalegit.com/doc/fonts is a primary indicator of the malicious destination.

Machine Learning

  • Nyx PDF Classifier clean score 0.0239

Heuristics 4

  • ClamAV: Pdf.Dropper.Agent-7254556-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7254556-0
  • 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.cpalegit.com/doc/fonts
    • 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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