Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3defca44d1517e…

MALICIOUS

PDF

45.0 KB Created: 2020-11-06 01:02:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 3c9f97993bfeba10d12499f130cc8d39 SHA-1: e5cb164eb0a195c53890b8a279fe1495b88241ef SHA-256: 0d3defca44d1517e2bc6de6eb0f75ea20ebe1de64ae3d4703b99e9a7ac9e08ca
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://gettraff.ru/strik?keyword=yertle+the+turtle+apa+citation In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368740/normal_5fa15589c4e09.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368485/normal_5f8d38588ce13.pdfIn PDF document text
    • https://fadusoga.weebly.com/uploads/1/3/0/7/130739873/dajasodinu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392854/normal_5f8f777398c49.pdfIn PDF document text
    • https://taferirufip.weebly.com/uploads/1/3/4/5/134582969/13b7b6400371.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365545/normal_5f89844130b20.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383804/normal_5f938c603837d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wovigebi/nikuto.pdfIn PDF document text
    • https://s3.amazonaws.com/tunenijexe/human_sensory_system.pdfIn PDF document text
    • https://s3.amazonaws.com/wisuw/nosamasovewelazozufel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f291c57-5f97-4e80-bf2d-f58590e8bc41/99214122695.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/detigasojivikukozojokubo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2146843-ad5c-4bc7-9394-02a68ac72d3a/95520479231.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/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
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007257.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7257 4804 bytes
SHA-256: 265fe3b7e1d30fbe6a8a39188de15cf5c5f1a366b8571ae501608411f14f8009
font_01_sfnt_off000082a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A6 10776 bytes
SHA-256: 9e2f48d42ab235e6166f7d77c0070c88aee00aaf318b65e1657fe93876d6b834