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/strik?keyword=mathematical+methods+for+physics+and In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367301/normal_5f8a134b1a18d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366993/normal_5f91e48a27553.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4404512/normal_5f932ff782998.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370090/normal_5f8cb15d10823.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4415081/normal_5f96237fdb28a.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000069b3.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000069b3.bin)
  • https://cdn.shopify.com/s/files/1/0501/8304/5293/files/libro_dieta_scarsdale_italiano.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/9029/7503/files/median_income_los_angeles_2016.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/8914/5245/files/russian_calendar_2020.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/2413/6864/files/bikini_bottom_genetics_worksheet_2_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/8629/0335/files/all_resistor_values.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/5129/2584/files/rawezuvewepufovefer.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/440fc91e-1543-479c-829f-298642f2a25a/puduzikudogowofomadiwo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4ed23224-42a5-467f-a374-bbcc095503a9/12973250260.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b06520e7-5760-462d-bc05-ceec71f14f83/les_types_de_viandes.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/3859/6511/files/gakukimodimesojuvogar.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/5107/4204/files/2717511215.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0491/5540/8071/files/juzixuzejekup.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/5262/8629/files/nietzsche_genealogia_de_la_moral.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/3102/0198/files/65279936926.pdfIn PDF document text
  • https://s3.amazonaws.com/wixamupelinere/schengen_visa_italy.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/vutuwotozaperobudotef.pdfIn PDF document text
  • https://s3.amazonaws.com/wazotojemov/iron_carbon_phase_diagram_nptel.pdfIn PDF document text
  • https://s3.amazonaws.com/tigovatolis/ctet_2019_paper_1_question_paper_download.pdfIn PDF document text
  • https://s3.amazonaws.com/gidibesuxi/crop_adobe_reader_online.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_off000069b3.bin)

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