Malicious PDF — malware analysis report

Heuristics 5

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=my+best+games+of+chess+alekhine+pdf+download In PDF document text

  • http://files.asianhorizonltd.com/uploads/1/3/0/7/130776201/5000799.pdfIn PDF document text
  • http://files.worklinkvas.com/uploads/1/3/0/7/130739201/vitab-kolopabikava-biranisorijoku.pdfIn PDF document text
  • http://tujen.ssixenterprises.com/uploads/1/3/2/8/132814742/jakofizenovuro_bilesapi_pukosozixo_modowaruzexote.pdfIn PDF document text
  • https://site-1037114.mozfiles.com/files/1037114/lifibupododosuxapugu.pdfIn PDF document text
  • https://site-1037172.mozfiles.com/files/1037172/getitabolulubafetavorazo.pdfIn PDF document text
  • https://site-1037073.mozfiles.com/files/1037073/98507659697.pdfIn PDF document text
  • https://site-1037235.mozfiles.com/files/1037235/kefegavamawovuwabereb.pdfIn PDF document text
  • https://site-1036996.mozfiles.com/files/1036996/8466378885.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000f5f9.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000f5f9.bin)
  • https://uploads.strikinglycdn.com/files/bc9c615b-9bd3-475b-8ad3-89f44ad1820e/98262051504.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d2c053d8-cf4f-4c17-b124-612489ae45b3/muberurove.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/41735dae-c76a-47b3-a7f6-01365f6e88bf/48713145343.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 extracted file (font_00_sfnt_off0000f5f9.bin)

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