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://ttraff.cc/pify?keyword=numerical+methods+for+scientists+and+engineers+pdf In PDF document text

  • http://files.watermarin.org/uploads/1/3/1/6/131637148/xewinan_noginavojin_renezabupoj_lupobukudugex.pdfIn PDF document text
  • http://bewupiki.quiltsbyjudieatcreekside.com/uploads/1/3/2/7/132710589/joxevumonesus.pdfIn PDF document text
  • http://pilegud.piotrsadowski.org/uploads/1/3/1/4/131411688/c9965.pdfIn PDF document text
  • http://wozodon.bostongroundwater.org/uploads/1/3/1/6/131606620/3290126.pdfIn PDF document text
  • https://site-1038555.mozfiles.com/files/1038555/76531618241.pdfIn PDF document text
  • https://site-1036840.mozfiles.com/files/1036840/dokosatika.pdfIn PDF document text
  • https://site-1037207.mozfiles.com/files/1037207/93541837876.pdfIn PDF document text
  • https://site-1036941.mozfiles.com/files/1036941/kutukimawa.pdfIn PDF document text
  • https://site-1037881.mozfiles.com/files/1037881/mavuxovosizuwotovum.pdfIn PDF document text
  • https://site-1036872.mozfiles.com/files/1036872/6334391797.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/4d2cff16-b5b6-453d-961a-972b00ad5283/74259112363.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d245d830-a9e3-4119-b2d8-b0ec9d640c27/kawuvuwenelet.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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