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/strik?keyword=neil+degrasse+tyson+astrophysics+in+a+hurry+free+pdf+download In PDF document text

  • https://site-1039305.mozfiles.com/files/1039305/46045402420.pdfIn PDF document text
  • https://site-1037903.mozfiles.com/files/1037903/72981574399.pdfIn PDF document text
  • https://site-1036923.mozfiles.com/files/1036923/67746161505.pdfIn PDF document text
  • https://site-1036681.mozfiles.com/files/1036681/kolegedegotexasaj.pdfIn PDF document text
  • https://site-1036626.mozfiles.com/files/1036626/33832222568.pdfIn PDF document text
  • https://site-1037261.mozfiles.com/files/1037261/nufedebebununovumiloja.pdfIn PDF document text
  • https://site-1036761.mozfiles.com/files/1036761/88459129919.pdfIn PDF document text
  • https://site-1038326.mozfiles.com/files/1038326/18735463293.pdfIn PDF document text
  • http://xajikaxew.emeralddrivena.org/uploads/1/3/1/3/131397997/15643d138.pdfIn PDF document text
  • http://files.travelbaseballrankings.com/uploads/1/3/2/6/132682342/kowixepevasoj-barubibuxegav.pdfIn PDF document text
  • http://rulege.ajoyhomecare.com/uploads/1/3/1/4/131407668/b005c127fdd8fc.pdfIn PDF document text
  • http://tofaxig.thewarsoftherosescatalogue.com/uploads/1/3/1/3/131398036/7236201.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/0062953c-aabc-4fe3-beba-6cc4bb706aff/46895017171.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b88f3c1b-f20a-4f1c-a5d2-11cb91183937/63940956240.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1b5f9def-26cd-433a-8559-f6a9b3bfd00c/rigawurawu.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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