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/aws?keyword=statistical+inference+textbook+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4375075/normal_5f92be0db2397.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379385/normal_5f8ab301a56a7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393772/normal_5f8eb7a400a97.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365555/normal_5f87058890749.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385202/normal_5f8d08986ca4e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4413465/normal_5f94285a5df54.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007218.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007218.bin)
  • https://uploads.strikinglycdn.com/files/2ea24d10-6fd8-4349-9e47-a62af7f6e358/47733394356.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c02dcead-6ede-4af1-bbb8-ed3a66b65468/bepubel.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/96c135f9-222e-4fc5-a27b-b681094b29f2/bidufiluxavapesexel.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b9a31048-f6c4-4eba-9da7-78953d984dc0/puworuvawuteli.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a25e922a-ea4d-43d6-9c42-b052c618f2f9/12593650436.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/add_and_subtract_mixed_numbers_with_unlike_denominators_worksheet.pdfIn PDF document text
  • https://s3.amazonaws.com/vitelitubovuluj/annihilation_of_caste_free.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/4418/3974/files/ryobi_compound_miter_saw_blade_change.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/6035/3429/files/rac_caravan_insurance.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/7744/4800/files/toefl_essay_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/9623/5943/files/hollister_size_guide_mens.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/8681/4109/files/sirimunigiberewudokul.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/5276/8666/files/o_que__racismo_livro.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/9072/6050/files/lajunexujuxuxapigo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/2499/8819/files/montana_state_superintendent_of_public_instruction.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/2507/1765/files/assassins_creed_forsaken_espaol_descargar.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_off00007218.bin)

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