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.me/123?keyword=west+african+music+genres In PDF document text

  • https://cdn-cms.f-static.net/uploads/4379217/normal_5f9656d77b113.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4448743/normal_5f9e3a5401e18.pdfIn PDF document text
  • https://juragubiv.weebly.com/uploads/1/3/0/8/130874328/velukuziralijomem.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370319/normal_5f8ac078646c8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383572/normal_5f8d20b645004.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/5344/6835/files/finding_asymptotes_of_rational_functions_worksheet.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/5181/0969/files/80049300351.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a1400994-2a0d-4115-baa4-2a0c66f66bc8/bejedumojifatibu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/7816/4384/files/zesowukidimowonarerel.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/992c63d5-8cc9-4ddc-8dcf-0ba391f70616/noco_boost_plus_gb40_1000_amp.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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