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/aws?keyword=articulos+cientificos+pdf+en+ingles In PDF document text

  • https://varipejat.weebly.com/uploads/1/3/0/7/130739080/rilopenatoxelogapil.pdfIn PDF document text
  • https://rezivunafotete.weebly.com/uploads/1/3/4/3/134354631/femukane.pdfIn PDF document text
  • https://rabifupokuwu.weebly.com/uploads/1/3/1/1/131164250/rivuson.pdfIn PDF document text
  • https://zigegawemofeza.weebly.com/uploads/1/3/1/4/131406932/gamesapa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382209/normal_5f92a1669f042.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366010/normal_5f870045a4abc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368958/normal_5f8bde86551e5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375095/normal_5f8ee38a78d92.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374009/normal_5f90dc0f7562e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391907/normal_5f8eb41b0641c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380395/normal_5f92306c62db8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389080/normal_5f8f71522ca05.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366976/normal_5f90d3cb30025.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005814.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005814.bin)
  • https://uploads.strikinglycdn.com/files/e35f8879-fe64-4d49-b575-e3ceb2ef61ef/kiwuwutadowixegiwometolez.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a96df9c2-3431-4aae-ab9b-92d5a7f54ff0/4643029900.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/742ec285-8889-4296-81c0-8cbef960e11f/97344802707.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/09ad5cb5-556a-48c5-af95-ffee6708b01e/84023348488.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/050ce3bf-9d7f-4e04-b74b-3cfad5728883/american_english_file_2_grammar_bank.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0666122a-ee8c-4421-808b-c572c1f47632/35857335808.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/667250d1-6c15-410f-8dce-c8784780db44/dupubabare.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b2f512e4-ce04-42b9-8cd1-b8cbbd1d584a/4250822309.pdfIn PDF document text
  • https://s3.amazonaws.com/wupixufekijax/conducting_marketing_research_and_forecasting_demand.pdfIn PDF document text
  • https://s3.amazonaws.com/fadedosi/poisson_probability_distribution_examples.pdfIn PDF document text
  • https://s3.amazonaws.com/betefowubevat/1031614352.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_off00005814.bin)

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