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/123?keyword=carbohydrates+building+blocks+for+proteins In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369307/normal_5f8e06eb2635e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380392/normal_5f9320c4f1813.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376404/normal_5f90d93234de4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384461/normal_5f96217ca326d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389354/normal_5f9714d1460ea.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387408/normal_5f92706a01049.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000076bc.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000076bc.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000ac5e.bin)
  • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/67081510982.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/8991/2218/files/bagujiwodarugemafo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8924/1258/files/ap_human_geography_chapter_4_study_guide_answer_key.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/9699/7030/files/90985019297.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/5771/5621/files/traffic_rider_hack_version_download_apk_mod.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/6577/7059/files/inequality_questions_reasoning.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/4408/9255/files/for_which_of_the_following_audit_tests_would_an_auditor_most_likely_use_attributes_sampling.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/6928/2725/files/hexagon_worksheets_for_pre_k.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/7431/3633/files/36160631488.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/0309/1872/files/swtor_smuggler_gunslinger.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9087/9667/files/92414846749.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_off000076bc.bin)

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