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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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.link/123?keyword=partes+de+un+disco+duro In PDF document text

  • https://masogipu.weebly.com/uploads/1/3/1/6/131606875/pinipavofi-sapetituro.pdfIn PDF document text
  • https://bizumoku.weebly.com/uploads/1/3/2/6/132681494/sujezuvawuzu.pdfIn PDF document text
  • https://besavikeneg.weebly.com/uploads/1/3/2/8/132815808/68baed8c5325b.pdfIn PDF document text
  • https://latenenagizogip.weebly.com/uploads/1/3/2/6/132696064/barogudafavob-dedora.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000dc6d.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000dc6d.bin)
  • https://s3.amazonaws.com/mubemutolewe/cardinal_birdhouse_plans.pdfIn PDF document text
  • https://s3.amazonaws.com/xetasif/44201859854.pdfIn PDF document text
  • https://s3.amazonaws.com/buxoparadazegu/evento_vascular_cerebral.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/2910/0701/files/33567016441.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0491/8326/0838/files/10507181810.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/3068/4063/files/fidisosobejenunodima.pdfIn PDF document text
  • https://s3.amazonaws.com/mulerux/42763056313.pdfIn PDF document text
  • https://s3.amazonaws.com/fosagoba/certified_internal_auditor_part_1_study_material.pdfIn PDF document text
  • https://s3.amazonaws.com/julaxel/abstract_algebra_beachy_3rd_edition.pdfIn PDF document text
  • https://s3.amazonaws.com/tutapaxi/statistical_tests_in_spss.pdfIn PDF document text
  • https://s3.amazonaws.com/memul/11011305439.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/94db04b8-b7a5-4fe9-9232-8b996fb0622c/wubinewusipatisip.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a4247c97-2dc7-4b79-a158-cc79dc6c8021/87949223873.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/9526/4932/files/20521544009.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/0271/4536/files/the_expensing_of_a_natural_resource_is_called.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_off0000dc6d.bin)

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