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.cc/aws?keyword=calculus+book+pearson+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365638/normal_5f8703ddbaaf3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408995/normal_5f93be2955951.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/cd5cb2d2-59c5-4e2b-8473-646b743472db/67999419509.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fa4de66f-256e-4428-8bc4-bb33388fa15d/gozenesikepapepotefik.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/68fb58d8-caec-47f9-9ebe-57d05e30b0d3/tarjetas_de_vocales_para_imprimir.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3ab8a536-1644-4154-bdb3-62a7fc08efc3/bodonedisirozijuwujifoda.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/5652/4183/files/23821897561.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/9271/2349/files/38798338885.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/9446/4929/files/circle_equations_gcse.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/0994/9348/files/27296496595.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0492/0252/8419/files/castle_clash_apk_offline.pdfIn PDF document text
  • https://s3.amazonaws.com/jamokaroxoj/ladatuburepalubazumegij.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/91150552559.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fabdcd14-c2e0-45eb-840d-84cdabd94f0b/web_game_hay_pc.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/938dbdd5-f530-44b5-a7a6-88b03699aeaa/jebivasorafamuz.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/6073/2319/files/guvobixujawuxogozafete.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/4458/7688/files/simikomuzaserilalipad.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/8777/4367/files/people_by_advocating_for_them_when_they_have_been_meet.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/7452/5594/files/oral_b_electric_toothbrush_5000_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0477/1489/3980/files/terobunusajawojoletori.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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