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/strik?keyword=kanaperunat+ja+porkkanat+uunissa In PDF document text

  • https://cdn-cms.f-static.net/uploads/4382194/normal_5f8ebf81abaea.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388046/normal_5f9091cc441de.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373264/normal_5f95c34a458b1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370777/normal_5f8b02a9884f1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385217/normal_5f8f1da621135.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384470/normal_5f8ee3af41c4a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389801/normal_5f92f5b9a9bad.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377674/normal_5f94aa3501bac.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391009/normal_5f8faacc6fe05.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368249/normal_5f942ee45b944.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379363/normal_5f91da5f05f3a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373757/normal_5f88c847372f7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388272/normal_5f95f74929497.pdfIn PDF document text
  • https://mizunawakore.weebly.com/uploads/1/3/1/4/131406356/3598899.pdfIn PDF document text
  • https://vururera.weebly.com/uploads/1/3/4/4/134493513/nugemapojigak.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/18c8f6ff-def3-46cd-b86e-57e539ae6830/9255357722.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c0c89b77-04b1-4984-ba94-ca86aaf4d5b7/57789522745.pdfIn PDF document text
  • https://s3.amazonaws.com/sepawi/70721729257.pdfIn PDF document text
  • https://s3.amazonaws.com/nowokil/lemisuv.pdfIn PDF document text
  • https://s3.amazonaws.com/jagux/speaking_in_tongues_script.pdfIn PDF document text
  • https://s3.amazonaws.com/dovulavavo/amore_e_psiche_apuleio.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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