Malicious PDF — malware analysis report

Heuristics 4

• 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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://cctraff.ru/pify?keyword=west+egg+vs+east+egg+gatsby In PDF document text

  • https://site-1036823.mozfiles.com/files/1036823/nizezipejuz.pdfIn PDF document text
  • https://site-1037188.mozfiles.com/files/1037188/41212750670.pdfIn PDF document text
  • https://site-1036874.mozfiles.com/files/1036874/fenunemimujawaduso.pdfIn PDF document text
  • http://wured.keithsarcade.com/uploads/1/3/0/8/130814295/6500102.pdfIn PDF document text
  • http://files.piedpyper.com/uploads/1/3/1/3/131379540/muzulowiz.pdfIn PDF document text
  • http://files.nmoc.co.uk/uploads/1/3/1/6/131637498/nexuvezevadirikubip.pdfIn PDF document text
  • http://files.rockiesparish.com/uploads/1/3/1/4/131438823/a8d763b7574b6b9.pdfIn PDF document text
  • https://site-1036956.mozfiles.com/files/1036956/73875583483.pdfIn PDF document text
  • https://site-1037846.mozfiles.com/files/1037846/samesefafokijepalune.pdfIn PDF document text
  • https://site-1037125.mozfiles.com/files/1037125/85485683370.pdfIn PDF document text
  • https://site-1037218.mozfiles.com/files/1037218/riletisigukesidogar.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/1/0485/1246/7106/files/42853218869.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/6097/1670/files/jimmy_fallon_book_club.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/9358/1212/files/la_familia_del_futuro_meme.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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