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.
• PDF carries website-builder CDN document link farm medium PDF_CDN_PDF_LINK_FARM
  PDF contains many clickable PDF links parked on website-builder CDNs or simple download gateways together with visible ebook, manual, or download lure text. This matches generated SEO document carriers used to route users through untrusted link/download chains; the PDF itself is an inert link carrier.
• 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://ggtraff.ru/strik?keyword=java+concepts+early+objects+8th+edition+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366009/normal_5f893d9b77ee6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366360/normal_5f8723f6e7d0e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369182/normal_5f8b6d2dc611c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374207/normal_5f88f733b4b99.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365567/normal_5f87b9f92e6b9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366620/normal_5f8b494556a28.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369774/normal_5f89ed949dc29.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365635/normal_5f8e51c88ceac.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366351/normal_5f87e17196517.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367680/normal_5f87e5a9622df.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005d78.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005d78.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off000093af.bin)
  • https://cdn.shopify.com/s/files/1/0433/4610/0392/files/randy_savage_net_worth_2020.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/2911/8627/files/subamolagedi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/4222/5831/files/que_significa_soar_con_piojos_en_otra_persona.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5ffb3108-c4c6-4a8c-b24f-9e0c49051fad/mefuwazawuboz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d6a0779b-f874-43ab-afdb-2c25e6a18b3a/99114484807.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_off00005d78.bin)

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