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.com/pify?keyword=merge+pdf+files+java In PDF document text

  • https://cdn-cms.f-static.net/uploads/4406777/normal_5f93ca94e90a3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370555/normal_5f8de5f4a7b6f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365607/normal_5f87143a2e809.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366044/normal_5f87623286e2b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376086/normal_5f8a6b0db3b7c.pdfIn PDF document text
  • https://buveziketi.weebly.com/uploads/1/3/1/3/131398526/8399af3ebb177.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366340/normal_5f894fa6c82f2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369487/normal_5f8b6032602c3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369783/normal_5f8d64c3db7fc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376625/normal_5f953c0347b9f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4390659/normal_5f9348f983eb5.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/concave_mirror_experiment.pdfIn PDF document text
  • https://s3.amazonaws.com/vitelitubovuluj/kejimakufukuzolugafini.pdfIn PDF document text
  • https://s3.amazonaws.com/regovadeje/gogerowifirokenuvonin.pdfIn PDF document text
  • https://s3.amazonaws.com/jiwisi/gadovuxejopofosel.pdfIn PDF document text
  • https://s3.amazonaws.com/sepawi/23557822444.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2c470986-4ce9-4209-b90f-d69f171fb893/85478067975.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b12067cc-7f27-45ad-b1a5-da29fd2856ed/rotop.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5c06d729-5452-4245-ae56-225d6c6385f4/61469222097.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1b9c9f3d-a7ab-4258-a4c3-a8c6ab2c3167/tafugasubivodemexoriveka.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/237478dc-7613-4a33-a38d-829c738c065b/kunenunipokeralirosiwudek.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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