Malicious PDF — malware analysis report

Heuristics 4

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://traffset.ru/strik?keyword=ms+leung+math PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4415080/normal_5fa01f36d2c85.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382190/normal_5f954622889bc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365626/normal_5f92046e636e3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4427095/normal_5fa4327b7babf.pdfIn PDF document text
  • https://gejovekozeja.weebly.com/uploads/1/3/4/4/134401956/kamuzuxaxuno_woxamer_fewupe_lugexipevu.pdfIn PDF document text
  • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/9232432.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4413223/normal_5f9737a4567b9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408583/normal_5f9fdf064ba1d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4443326/normal_5f9e7d57221e4.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/e2f3e105-b872-4533-9b43-95fd6adffa89/examen_geografia_quinto_grado_primer_bimestre.pdfIn PDF document text
  • https://s3.amazonaws.com/rekibedafowow/5367823754.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/211b0421-7828-4094-b9f8-42a79e5313ae/improve_english_speaking_skills_book.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/nobesukemaz.pdfIn PDF document text
  • https://s3.amazonaws.com/jafujasiwetid/abc_data_sheet_checklist.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7a7dad8b-556a-42d9-aee2-55e5cb0da118/76802035290.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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