Malicious PDF — malware analysis report

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://traffine.ru/123?keyword=staar+test+answers+2018 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365549/normal_5f89e8091d938.pdfIn PDF document text
  • https://bajusumuke.weebly.com/uploads/1/3/2/7/132741128/woxuma.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/zidenigad/disutozularimugigoferulo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b77f800e-f072-4024-978b-b9453a1c3897/osrs_range_pure_guide_f2p.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c1a41ccf-5715-4b64-8f1e-6da6dc7f6e83/business_essentials_ninth_edition_te.pdfIn PDF document text
  • https://metibuvup.files.wordpress.com/2020/11/soviketuxalepejokeror.pdfIn PDF document text
  • https://s3.amazonaws.com/nijudow/65537407371.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5ed57644-a939-4a8d-a719-16b7bdca1599/resumen_del_capitulo_6_de_una_mecanica_sin_talachas.pdfIn PDF document text
  • https://s3.amazonaws.com/vokeri/89138510209.pdfIn PDF document text
  • https://s3.amazonaws.com/pazerogasarinu/self_mastery_through_conscious_autosuggestion.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6ad5c0c5-5c3b-4e49-9a9f-26bc493b47a7/7399521678.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/08068da2-b235-44c0-a382-cef93dfacb15/68360222255.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

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