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/pify?keyword=auditory+discrimination+activities+minimal+pairs In PDF document text

  • http://welixi.protectmusiceducation.org/uploads/1/3/1/4/131453870/62eff4ef4.pdfIn PDF document text
  • http://files.playleadguitar.net/uploads/1/3/1/4/131482853/8337484.pdfIn PDF document text
  • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/8475/0747/files/66824187305.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/3884/6371/files/p_assessment_in_perianesthesia_nursing.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/1137/8839/files/fujudaxazi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/0523/8692/files/sample_letter_to_hoa_board_of_directors.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/2634/1272/files/madden_overdrive_hack_no_human_verification.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/242b18a7-ffe4-4bbc-a96f-35a892626031/43174544921.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c52beb61-cad6-4a59-b7d7-8a53babdcb0b/sigawagota.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ac2d8d0f-815a-416b-8bee-d989c0f2f4da/63276481145.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1286e069-3335-412d-b362-468e047efb10/dojukevexaro.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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