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/pify?keyword=generalidades+de+la+investigacion+cientifica+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4372723/normal_5f90e1a58cad9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370288/normal_5f91d6a072edb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370309/normal_5f8fa71a195f5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366371/normal_5f8741d88fcb5.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000728a.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000728a.bin)
  • https://uploads.strikinglycdn.com/files/4a79b716-f322-43f1-bdee-bd5999f0b657/ejercicios_pitagoras_1o_eso.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/95755514-ff33-4463-ad45-a6841f27e547/95682216544.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d0de06e4-1780-4ee7-b09b-c936c853547f/85265232640.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1ce99e56-e9cc-4c5f-a20e-3c82f0be1850/7668491205.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/86346397062.pdfIn PDF document text
  • https://s3.amazonaws.com/sitok/pdf_editor_online_editing_text_free.pdfIn PDF document text
  • https://s3.amazonaws.com/xanebavifamopez/42738799786.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/9447/2856/files/47141849140.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/0639/7096/files/hard_news_lead.pdfIn PDF document text
  • https://s3.amazonaws.com/leguvefu/bls_algorithm_2017.pdfIn PDF document text
  • https://s3.amazonaws.com/tuxenipup/cardiology_an_illustrated_textbook.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0490/0805/0343/files/44510582725.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/7623/6950/files/wopukaposesisofobuvu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/3556/0606/files/miniduporuterazaguwid.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/2342/3912/files/united_airlines_receipt_details.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 extracted file (font_00_sfnt_off0000728a.bin)

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