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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=univariate+data+practice+worksheet In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365621/normal_5f892dc6e4244.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370317/normal_5f88103ee7c3e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366306/normal_5f871952e01b0.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/1/0502/5801/8472/files/maui_hotel_honeymoon_packages.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9271/4685/files/cyanogenmod_keyboard_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/6734/9923/files/dragon_mania_legends_breeding_guide_for_legendary_dragons.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/0396/7150/files/cp_company_junior_size_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/0546/7035/files/dash_diet_cookbook_2020.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/3627/3559/files/f_150_brochure.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/8697/7441/files/pci_express_m.2_specification_revision_1.0.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/6093/1991/files/32545943577.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/9879/1322/files/sifagiwogirif.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/3417/1800/files/ge_profile_refrigerator_not_cooling_but_freezer_working.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/2478/7867/files/xilerofapixox.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/3273/0008/files/uw_math_course_schedule.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/00ea711c-49c6-49d8-9c3d-7a52a3ebb578/33143862581.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/61d239fc-5be7-4c35-aa87-97a563ade4c6/ruzoz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cccf7d58-3557-41bc-a4d4-937f4afc74fb/dofilavufepufa.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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