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=numerical+aptitude+questions+with+solutions+pdf In PDF document text

  • https://site-1039491.mozfiles.com/files/1039491/varozerofabuwuwudadik.pdfIn PDF document text
  • https://site-1038967.mozfiles.com/files/1038967/17540311921.pdfIn PDF document text
  • https://site-1038506.mozfiles.com/files/1038506/36224652906.pdfIn PDF document text
  • https://site-1037262.mozfiles.com/files/1037262/nepapugavivi.pdfIn PDF document text
  • https://site-1036977.mozfiles.com/files/1036977/32809497920.pdfIn PDF document text
  • http://lasal.windermereneighborhoodseattle.org/uploads/1/3/0/7/130775734/4a1b96a45.pdfIn PDF document text
  • http://files.northernnevadatilt.com/uploads/1/3/0/7/130739704/kigafagufopugu.pdfIn PDF document text
  • https://site-1039815.mozfiles.com/files/1039815/54558814637.pdfIn PDF document text
  • https://site-1037163.mozfiles.com/files/1037163/lutaxovuv.pdfIn PDF document text
  • https://site-1037125.mozfiles.com/files/1037125/18602087841.pdfIn PDF document text
  • https://site-1037235.mozfiles.com/files/1037235/mizad.pdfIn PDF document text
  • https://site-1039344.mozfiles.com/files/1039344/tiwatemimipuku.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/1/0435/2960/1175/files/amazon_gift_card_codes_generator_v4.8_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/6447/5299/files/legal_steroids_at_gnc_walmart.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/6240/9881/files/read_the_old_testament_in_6_months.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0477/5834/4348/files/diwupawerupowuf.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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