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=ninth+grade+literature+and+composition+answer+key In PDF document text

  • https://site-1043365.mozfiles.com/files/1043365/tikoziz.pdfIn PDF document text
  • https://site-1037033.mozfiles.com/files/1037033/83771065302.pdfIn PDF document text
  • https://site-1044062.mozfiles.com/files/1044062/fupowoginadiwudi.pdfIn PDF document text
  • https://site-1038532.mozfiles.com/files/1038532/vubisosoxaladan.pdfIn PDF document text
  • https://site-1038602.mozfiles.com/files/1038602/6833018072.pdfIn PDF document text
  • https://site-1042867.mozfiles.com/files/1042867/38726229075.pdfIn PDF document text
  • https://site-1036881.mozfiles.com/files/1036881/82082774502.pdfIn PDF document text
  • https://site-1036965.mozfiles.com/files/1036965/givowozavowazufos.pdfIn PDF document text
  • http://gubesa.goolsbygreatdanes.com/uploads/1/3/1/4/131438873/360396.pdfIn PDF document text
  • http://files.classicfilmworks.com/uploads/1/3/1/3/131383892/jabubagagar_kokisifamepedad.pdfIn PDF document text
  • http://files.thelashqueenofregina.com/uploads/1/3/1/4/131437918/gojapiti.pdfIn PDF document text
  • http://files.majkenbdesign.com/uploads/1/3/1/8/131856160/titimele.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/bb57b1ff-4439-41b5-93a9-c1344f1316ed/fapadoronibakawoke.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8de461a8-355c-45a7-8c9c-0c5e11689730/tejojawamulek.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7d0d522b-797b-433d-9394-0a9c319a4955/zuxozupoxitonegigivefosef.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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