Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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=beginning+algebra+sherri+messersmith+pdf+free In PDF document text

  • https://cdn-cms.f-static.net/uploads/4368759/normal_5f8bc4b44b5b4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367617/normal_5f8b35e320197.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382186/normal_5f8b941d6a8f0.pdfIn PDF document text
  • https://takijotirodone.weebly.com/uploads/1/3/1/6/131637658/eab11076.pdfIn PDF document text
  • https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/8e9af831d.pdfIn PDF document text
  • https://xumogimunosu.weebly.com/uploads/1/3/1/6/131607683/48afb0ac.pdfIn PDF document text
  • https://sesuwulot.weebly.com/uploads/1/3/1/4/131438847/400883.pdfIn PDF document text
  • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/bumumobo.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368969/normal_5f882b15b10c7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371783/normal_5f88bd87654c7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366959/normal_5f877e3782a48.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366400/normal_5f8a0982a3524.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379053/normal_5f8b75fb7bf13.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366646/normal_5f87845d1d51c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376875/normal_5f8b35bcd7781.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/f1284d66-bc10-4a7c-bc34-190fd0ea7ece/45059221719.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9e418b9a-961b-4db1-95af-0ad975a1136b/pumisuwavi.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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