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=new+international+business+english+test+answers+pdf In PDF document text

  • https://site-1036754.mozfiles.com/files/1036754/64065325044.pdfIn PDF document text
  • https://site-1039897.mozfiles.com/files/1039897/48135256248.pdfIn PDF document text
  • https://site-1043132.mozfiles.com/files/1043132/tibuwinamen.pdfIn PDF document text
  • http://files.goodpasturecheerleading.com/uploads/1/3/1/0/131070161/rotuvinavowo_xabetimetaf_bizag.pdfIn PDF document text
  • http://files.tulbarroco.com/uploads/1/3/2/3/132302982/4bb61f.pdfIn PDF document text
  • http://genef.darwinleon.com/uploads/1/3/0/8/130873995/joxevufaxex.pdfIn PDF document text
  • http://litigux.natashadavid.com/uploads/1/3/1/4/131454731/5741237.pdfIn PDF document text
  • http://gujutit.apcsaexam.org/uploads/1/3/1/3/131380397/1860025.pdfIn PDF document text
  • http://files.mibedandbreakfast.com/uploads/1/3/0/8/130874598/318f991.pdfIn PDF document text
  • http://wubuwilo.cv2r.org/uploads/1/3/0/7/130739906/55b86195e9.pdfIn PDF document text
  • http://files.rowancountychristmas.org/uploads/1/3/0/7/130739934/5606389.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/850b6029-4918-4d2b-a76d-ddb30177d21b/xumepepakevamofe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c91484fa-7f1f-4df8-87fd-943b865f9a75/47575666786.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6f6192bb-54cf-44bc-99fa-164e5d620fee/27977935534.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c22e6baf-c026-49ab-a8f3-cdee9398086e/monexaj.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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