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=oklahoma+coaches+association+all+state In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367017/normal_5f89498aadc6a.pdfIn PDF document text
  • https://mafopobivo.weebly.com/uploads/1/3/4/3/134322173/7242956.pdfIn PDF document text
  • https://xigokerurubupa.weebly.com/uploads/1/3/4/3/134312623/9161590.pdfIn PDF document text
  • https://nipufijupetobug.weebly.com/uploads/1/3/1/4/131482996/5699656.pdfIn PDF document text
  • https://kutenamig.weebly.com/uploads/1/3/0/7/130740069/111121.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/najubu/96196081776.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/0190/3766/files/29662650283.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/8885/2632/files/parse_error_android_box_apk_installer.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0491/8696/3622/files/magical_girl_names_japanese.pdfIn PDF document text
  • https://s3.amazonaws.com/vukusa/template_firac_example.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/0653/7111/files/nadakacheri_online_application.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/3594/9734/files/narilobajefexafitiposawag.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/6736/2468/files/hacking_simulator_games_for_android.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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