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=ecg+made+easy+8th+edition+pdf+download In PDF document text

  • https://site-1039915.mozfiles.com/files/1039915/fepini.pdfIn PDF document text
  • https://site-1040251.mozfiles.com/files/1040251/waduriw.pdfIn PDF document text
  • https://site-1038631.mozfiles.com/files/1038631/96685270102.pdfIn PDF document text
  • https://site-1038455.mozfiles.com/files/1038455/welelijer.pdfIn PDF document text
  • https://site-1042635.mozfiles.com/files/1042635/nojivokutewevadegifo.pdfIn PDF document text
  • http://files.tvtresdiasid.org/uploads/1/3/1/3/131398094/7319312.pdfIn PDF document text
  • https://site-1041761.mozfiles.com/files/1041761/53066186162.pdfIn PDF document text
  • https://site-1037219.mozfiles.com/files/1037219/77210813495.pdfIn PDF document text
  • https://site-1042602.mozfiles.com/files/1042602/34858263199.pdfIn PDF document text
  • https://site-1037111.mozfiles.com/files/1037111/lunowe.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/1/0432/5916/6888/files/kokarasalefovijegijis.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/8832/1435/files/hollow_knight_delicate_flower_best_path.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/7297/8595/files/ph_concentration_worksheet.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/5415/4406/files/flight_attendant_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/7777/1162/files/tatulotumelitonimawime.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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