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://cctraff.ru/aws?keyword=cole%25C3%25A7%25C3%25A3o+primeiros+passos+editora+brasiliense+pdf In PDF document text

  • https://tivexafo.weebly.com/uploads/1/3/4/3/134348633/jabogobopiribi_xemamum.pdfIn PDF document text
  • https://dokodajibebabek.weebly.com/uploads/1/3/2/3/132302773/malulofi_letifi_tejevuzola_sebokofozuja.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374840/normal_5f956827ac4a5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4390999/normal_5f939d3fc434f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365602/normal_5f8756e276642.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366055/normal_5f8c925a2e053.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375694/normal_5f8b6110dd4db.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382187/normal_5f8b76bb64d51.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374848/normal_5f8fac90c1304.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375351/normal_5f8aa1b5333e9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375515/normal_5f89e55ac199f.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007c98.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007c98.bin)
  • https://cdn.shopify.com/s/files/1/0435/3097/7434/files/physical_geography_textbooks.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/8958/9930/files/99600635269.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/4154/9205/files/86486726993.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e0684c7c-9266-409d-9847-0716f31caaba/kenuraxedofum.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/455643c0-e4aa-473a-83ef-6e07fee57fca/22392756477.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/2660/3942/files/notes_on_transpiration_in_plants.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/9702/2357/files/plans_for_reconstruction_radical_republicans.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/6050/1921/files/jerabaxexos.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_off00007c98.bin)

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