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://ggtraff.ru/123?keyword=adding+subtracting+negative+numbers+worksheet In PDF document text

  • https://tipefejiri.weebly.com/uploads/1/3/0/9/130969755/lixudefanup.pdfIn PDF document text
  • https://fanavepuru.weebly.com/uploads/1/3/1/8/131871984/3359054.pdfIn PDF document text
  • https://fuvipizewovotat.weebly.com/uploads/1/3/1/0/131069886/5c76672eb70f1.pdfIn PDF document text
  • https://zekuwatifakaxi.weebly.com/uploads/1/3/2/8/132815855/xekakakugesa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369152/normal_5f88dac8e5873.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371783/normal_5f88de7e8754c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366965/normal_5f873decb3e2b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369769/normal_5f886d60714a1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365540/normal_5f875b57a5373.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366340/normal_5f8710e425fcb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366032/normal_5f88f43188a7c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367005/normal_5f873bfda6758.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365591/normal_5f8852644cf24.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/1/0429/6510/6847/files/bosch_6kg_front_loader_washing_machine_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/3866/9510/files/metodologia_de_la_investigacion_hernandez_sampieri.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/4940/1499/files/bluetick_beagle_puppies_for_sale_in_wisconsin.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e0865b7a-0a46-4f8f-98fc-d917a47d5ffa/sazudaz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/67398dcf-e666-4433-b142-5b0e052cbebe/90991985605.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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