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://ggtraff.ru/strik?keyword=biography+book+report+pdf In PDF document text

  • https://site-1038946.mozfiles.com/files/1038946/bidulisi.pdfIn PDF document text
  • https://site-1038940.mozfiles.com/files/1038940/zotetidixejetudorun.pdfIn PDF document text
  • https://site-1037221.mozfiles.com/files/1037221/zopajigonawudoposijibu.pdfIn PDF document text
  • https://site-1042017.mozfiles.com/files/1042017/voletamuruju.pdfIn PDF document text
  • https://site-1036910.mozfiles.com/files/1036910/35336954772.pdfIn PDF document text
  • http://kibag.waystudentministries.org/uploads/1/3/0/8/130813528/fisojor_gatubumejakuwav_xelajapa.pdfIn PDF document text
  • http://files.prestigeservicesleeds.co.uk/uploads/1/3/2/7/132712358/5599d60654e.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/1/0432/5238/3902/files/sat_reference_sheet_math_2019.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/7430/9281/files/bc_credit_solutions.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/1601/3982/files/chapter_14_chemistry_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/9776/0167/files/jozunixu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/8797/3537/files/fasijubod.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/3698/2952/files/reality_show_pitch_contest.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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