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.club/123?keyword=dr+taub+house+md In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366348/normal_5f870ea7498a3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4414514/normal_5f9735238d500.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366308/normal_5f88fd981f906.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378152/normal_5f94983a73179.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375358/normal_5f8aaab16a02f.pdfIn PDF document text
  • https://dafalozurevibi.weebly.com/uploads/1/3/4/3/134308304/113b7855d731968.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/cc513ca9-db0e-44ee-9a14-5518a20ae0cd/fallout_4_horizon_vendor_contract.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/2066/3970/files/photo_quiz_answers_level_6.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/4675/6263/files/29382967746.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/1780/0350/files/osrs_mutated_bloodveld_weakness.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/2844/8933/files/goxazagonesineg.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0645228a-135e-469c-89c9-547ead3c4502/shaolin_workout.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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