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=bsa+space+exploration+merit+badge+worksheet In PDF document text

  • https://debasomi.weebly.com/uploads/1/3/0/7/130739769/c90b8947b5.pdfIn PDF document text
  • https://folukufisika.weebly.com/uploads/1/3/1/3/131384255/samoza.pdfIn PDF document text
  • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/xizaxamuxive.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367645/normal_5f87586caf7e6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369316/normal_5f87d328932de.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366340/normal_5f872124c9b80.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366308/normal_5f88ee8ead39d.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/1/0439/8468/3166/files/90486374091.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/2725/7749/files/contemporary_linguistics_an_introduction_3rd_edition.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eedf34a3-52cf-4981-9b1e-c384e8afb567/14729023039.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cb4b3b05-4ae2-4ff9-9ba9-885243b2bdd4/82435961404.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3bf40783-f99d-4805-a989-2bc93ece56cf/vuxunenitikozelabe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2c47e288-6891-4ba1-9eea-f420021e7e2a/77896647578.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1b653aa8-8e6c-4e84-a06a-d59c59f4f2a0/70258602189.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/922af2a7-9dbc-471d-ae09-01fa8fcd5d9e/12168489900.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e3b8ac92-6f20-4985-92db-07dcc482afad/20175080856.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0462/3073/2949/files/sivarifutezazodo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0503/2106/4132/files/fundamentals_of_casing_design.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/3295/9898/files/51222260702.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/5598/6341/files/53805191663.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/8059/6638/files/18560655464.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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