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/strik?keyword=printable+bachelor+bracket In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366376/normal_5f884af7cd337.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366010/normal_5f8877f3523bc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369629/normal_5f88a2e1e6884.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367275/normal_5f873aee0d952.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376369/normal_5f89b4674cf61.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366340/normal_5f871706c8614.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369328/normal_5f888c51bd596.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/1/0481/0509/5331/files/ridubexajegumuj.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0477/3294/9148/files/bangor_daily_news_obituary_today.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/7133/1742/files/pokibezabalixinida.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/6510/6847/files/fox_float_32_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9314/0676/files/53772264064.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/7160/5410/files/50667241539.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/9377/7302/files/film_screen_radiography.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/2410/5115/files/non_verbal_communication_techniques.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/8991/2218/files/download_game_critical_strike_portable_mod_apk.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/196a35dc-d375-43eb-9c06-1f6319e975cb/69634834493.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/24420b47-47fb-4965-9968-218fbabe3034/15176052243.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/797546ed-9686-4dc2-8c16-0e141dfff356/kidelipibosadeli.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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