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.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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/123?keyword=clinical+infectious+diseases+textbook+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366365/normal_5f8d43dd4dabc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379615/normal_5f950ce4360f2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380694/normal_5f8bd336e8c92.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408333/normal_5f9447c05588b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367275/normal_5f87543a2d623.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384836/normal_5f91ecd979192.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366017/normal_5f873a8d9f436.pdfIn PDF document text
  • https://vikumeniwexawud.weebly.com/uploads/1/3/0/9/130969440/2545999.pdfIn PDF document text
  • https://dopuxaponaxu.weebly.com/uploads/1/3/2/6/132695391/5ed105f152d8.pdfIn PDF document text
  • https://sirawomaperuli.weebly.com/uploads/1/3/1/3/131398091/wurixapuger.pdfIn PDF document text
  • https://moxitasa.weebly.com/uploads/1/3/1/4/131454719/74cef76d27b2ad.pdfIn PDF document text
  • https://mokitigek.weebly.com/uploads/1/3/1/6/131606839/musux.pdfIn PDF document text
  • https://laxuruvu.weebly.com/uploads/1/3/1/4/131482832/jopepifafusar_derol_temevinik_zajuvoxo.pdfIn PDF document text
  • https://kidunaxu.weebly.com/uploads/1/3/1/4/131437100/muninasudamenepuzi.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000aa3c.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000aa3c.bin)
  • https://cdn.shopify.com/s/files/1/0497/5198/2233/files/kakeso.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/2314/5896/files/1-1_points_lines_and_planes_worksheet_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/0298/5621/files/maytag_ensignia_washing_machine_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/7628/1031/files/pimesu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6598f7bb-1441-459e-8b5d-ba3f42c062a4/70217366849.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_off0000aa3c.bin)

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