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.me/123?keyword=2019+maplestory+reboot+gear+guide In PDF document text

  • https://cdn-cms.f-static.net/uploads/4379601/normal_5f8ee05bef423.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4417037/normal_5f95e27ff39b5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366008/normal_5f88c52cd8809.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4392661/normal_5f9e128e65e31.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383321/normal_5f91fa4d12d47.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393022/normal_5f95158e31539.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/1/0483/6294/6720/files/coleman_mach_3_air_conditioner_installation_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/17e19457-2b01-43d0-9345-4759fb498758/4942617625.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/7916/2775/files/memoire_online_droit.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/8174/2485/files/streaming_software_for_iphone.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0506/3838/9424/files/channelview_high_school_counselors.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9daaaae3-b6b5-4799-8f65-fb3163cf58fe/75250828583.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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