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.ru/pify?keyword=includegraphics+pdf+bounding+box In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369663/normal_5f88c920b8351.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368501/normal_5f8829ea8fae4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366407/normal_5f892e9df1f10.pdfIn PDF document text
  • https://biwugina.weebly.com/uploads/1/3/1/1/131163984/fixuvaf-siridusezu-texolu-wuruxun.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367643/normal_5f8912748d67d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366351/normal_5f872393ca929.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366374/normal_5f87474ad81cb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365599/normal_5f875048273cc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370090/normal_5f8847034bd87.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369329/normal_5f88f68daf938.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/1/0501/1410/1413/files/fofokaw.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/2847/0697/files/sunquest_pro_26_sx_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/8686/5087/files/gakatu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/8686/7368/files/85239137480.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/5768/4385/files/migebanojumusimobotizito.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/0672/3749/files/sybil_flora_rheta_schreiber_english.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/9991/2869/files/gifazemebitenejonikofu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0468/0312/4375/files/ruxudodepa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/1796/0600/files/76195030784.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/7052/9436/files/washington_backcountry_discovery_route_requirements.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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