Malicious PDF — malware analysis report

Heuristics 5

• 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.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• 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://ttraff.link/wix?keyword=the+case+of+a+self+contained+meaning In PDF document text

  • http://files.realwalks.com/uploads/1/3/2/3/132303009/mazatopefikir-tarigikisafexo-guzipopuru-fodawulonekidem.pdfIn PDF document text
  • http://files.jessica-gordon.com/uploads/1/3/0/7/130775728/gabanuzefen_gowudaguk_gedisomibafixe.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://fedorahosted.org/lohitIn PDF document text
  • https://fca02d60-5857-4fd9-b3a0-3b8c598cac2d.filesusr.com/ugd/851c7c_450e958498e44f43aef52837e1899b19.pdf?index=trueIn PDF document text
  • https://1ec44e47-b545-4667-9151-f1e1be153ca6.filesusr.com/ugd/3a38e0_45b595f5ceaa4affbfcab147de8571ff.pdf?index=trueIn PDF document text
  • https://addd23c8-f78c-41e1-ba4a-9308775559d8.filesusr.com/ugd/6924eb_355126730e18464b97b6f95338583647.pdf?index=trueIn PDF document text
  • https://e7e723ad-c83c-45b2-ab45-e508eb6b8202.filesusr.com/ugd/d61b30_bd8c1ffd132a4c14ac860d60edca3397.pdf?index=trueIn PDF document text
  • https://cdn.shopify.com/s/files/1/0463/5338/3581/files/duburimativiwo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/6369/6805/files/gegipasul.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/7309/3288/files/ielts_writing_task_2_sample_essays_band_9.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/6870/5954/files/95328206299.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/8369/4247/files/64531507783.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
  • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
  • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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