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/123?keyword=biology+book+form+1+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365998/normal_5f8710f93abef.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365540/normal_5f87346686b62.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366659/normal_5f87216489a38.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366377/normal_5f8723867a94a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366335/normal_5f870e52c91bb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366014/normal_5f87085e49ca9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365575/normal_5f870baa16f66.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366337/normal_5f87173122681.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366043/normal_5f8715c48a279.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366316/normal_5f870e31521b4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365547/normal_5f86f603de166.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/1/0432/1034/2563/files/23489937542.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/4637/0471/files/alameda_county_birth_certificate_notary.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/4372/3163/files/moronuzubuzesotasemexivan.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/8380/7902/files/dig_to_china_hacked_unblocked.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/7317/4693/files/gesodegivomepidadakofag.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/3464/7445/files/94735958853.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/8732/2522/files/zofomuruvuzinedujogo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/7914/5374/files/adverbial_clause_spanish_definition.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9474/6288/files/mini_motorcycle_two_stroke_engine_maintenance_and_repair.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/3269/9302/files/47940428439.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/2815/1959/files/xokiboberajefarexewusura.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/7713/0658/files/52312266221.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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