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.link/123?keyword=snell+neuroanatomy+8th+edition+pdf In PDF document text

  • https://sepenunaxob.weebly.com/uploads/1/3/0/7/130776074/37b38e982360.pdfIn PDF document text
  • https://senobatupubem.weebly.com/uploads/1/3/1/4/131437889/202a75.pdfIn PDF document text
  • https://bafuvaki.weebly.com/uploads/1/3/4/3/134336870/korunazerirof.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365563/normal_5f876579677d9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366399/normal_5f8c270bbcbc6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368950/normal_5f8b147fdf3aa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369496/normal_5f8b21439089b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369522/normal_5f91f9b52d6ae.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375690/normal_5f918d0756226.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383916/normal_5f8cc1b423367.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372100/normal_5f93ef4cba3fb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388422/normal_5f94c98b17333.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370092/normal_5f88dc8198069.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000051c6.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000051c6.bin)
  • https://cdn.shopify.com/s/files/1/0433/8070/3382/files/bijuka.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/9506/4733/files/51082264986.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/6134/4406/files/ukulele_chord_chart_beginner.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/3244/4582/files/27351835548.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/2379/7911/files/sidadapejelugutu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/2364/4866/files/kedopukogenipuzupad.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_off000051c6.bin)

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