Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc8185cb530c5add…

MALICIOUS

PDF

51.1 KB Created: 2017-10-10 08:20:46 -08:00 Authoring application: RAD PDF (via RAD PDF 2.38.0.0 - http://www.radpdf.com)
MD5: 90b57cd3945ffae99298f2d87fb5c8a0 SHA-1: 5b168e3eed743080083b40ffccb69459204958a9 SHA-256: dc8185cb530c5add16b483c5228fdfd66a8edc631a2a3b40aaeeb1eccc13f291
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file is identified as an image-based lure, a common phishing technique. It contains a clickable link that redirects through a URL shortener. The heuristic firings indicate that the document is designed to trick the user into clicking the link, which likely leads to a malicious site. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier clean score 0.0032

Heuristics 3

  • Image-only PDF lure links through URL shortener high PDF_IMAGE_LURE_SHORTENER_LINK
    PDF is image-heavy with little real text and its clickable action points to a URL shortener. This is a high-confidence credential-phishing carrier shape: the visible page is a screenshot-like prompt while the destination is hidden behind redirect infrastructure.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 2 image(s), only 1 text block(s), carries a click-outward action, and is only 51 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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.radpdf.com)/Creator(RAD
    • http://www.dynaforms.com
    • http://www.radpdf.com
    • http://bit.ly/2wZKf5K
    • http://bit.ly/2yWDbDt
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/

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