Malicious PDF — malware analysis report

Static analysis result for SHA-256 a815756bd9b9f4c7…

MALICIOUS

PDF

39.4 KB Created: 2016-09-13 09:10:11 UTC Authoring application: RAD PDF (via RAD PDF 2.35.6.2 - http://www.radpdf.com) First seen: 2021-05-29
MD5: 08d440493b50962c0b41c320501349e8 SHA-1: 5441a9b0679ff4362f21f01d5f8cccdf31fa727a SHA-256: a815756bd9b9f4c775267d56e15806d3c83917ecb5c931d555f3a42f20a67f05
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as an image-only lure, a common tactic for phishing or malware delivery. It contains embedded URLs that redirect through URL shorteners, specifically http://tinyurl.com/zv6vgzf and http://tinyurl.com/jxalklc. While no scripts were explicitly extracted, the PDF structure and the presence of these links strongly suggest an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier clean score 0.0447

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 0 text block(s), carries a click-outward action, and is only 39 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 In PDF document text
    • http://www.radpdf.com)/Author(Pahgy)/Creator(RADIn PDF document text
    • http://www.dynaforms.comIn PDF document text
    • http://tinyurl.com/zv6vgzfIn PDF document text
    • http://tinyurl.com/jxalklcIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text

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