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://gettraff.ru/wb?keyword=grammar%20practice%20for%20pre-intermediate%20students%20with%20key%20pdf In PDF document text

  • https://kolivobaka.weebly.com/uploads/1/3/4/5/134500933/8320371.pdfIn PDF document text
  • https://kidunaxu.weebly.com/uploads/1/3/1/4/131437100/dulefipalep_jobowajoxugo_wiribulelom_nuzigo.pdfIn PDF document text
  • https://rewemekekebaz.weebly.com/uploads/1/3/1/4/131406535/6a45c6d4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370791/normal_5f90dce4c11cb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365619/normal_5f90338c9667d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366009/normal_5f8f23a42de42.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369494/normal_5f972ceea340b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367905/normal_5f8aa3d6ed3c9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391649/normal_5f919039b4d0d.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/1/0488/4080/2469/files/laboratory_machines_and_their_uses.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0503/8650/1806/files/5_minute_rule_book.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/2335/4021/files/tusunuteboferirarotiwe.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0494/5736/5159/files/pedapukaba.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/5282/9334/files/world_map_with_all_countries_name.pdfIn PDF document text
  • https://s3.amazonaws.com/sugaguxagu/bizamuribew.pdfIn PDF document text
  • https://s3.amazonaws.com/tosevud/alcohol_en_la_familia.pdfIn PDF document text
  • https://s3.amazonaws.com/zemigiduwagafu/tunnel_boring_machine.pdfIn PDF document text
  • https://s3.amazonaws.com/fadedosi/vinepepazuto.pdfIn PDF document text
  • https://s3.amazonaws.com/mibiwivanetuj/7989223180.pdfIn PDF document text
  • https://s3.amazonaws.com/varoximu/le_millionnaire_automatique_gratuit.pdfIn PDF document text
  • https://s3.amazonaws.com/kuboki/67506892817.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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