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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• 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=beam+bending+theory+lab+report In PDF document text

  • https://site-1042025.mozfiles.com/files/1042025/nusolezaguwa.pdfIn PDF document text
  • https://site-1039413.mozfiles.com/files/1039413/16161786956.pdfIn PDF document text
  • https://site-1037120.mozfiles.com/files/1037120/84596515244.pdfIn PDF document text
  • http://lupor.las-socscience.com/uploads/1/3/1/4/131453336/9032773.pdfIn PDF document text
  • http://jokuxox.ruthbretholz.com/uploads/1/3/0/7/130775447/rozibabot-zajar-rikitasidusepok.pdfIn PDF document text
  • http://files.inspectorplus.ca/uploads/1/3/2/8/132814086/sebosonodudazesosat.pdfIn PDF document text
  • http://files.shopbackroads.com/uploads/1/3/2/6/132695668/30a647d5be30a.pdfIn PDF document text
  • http://falefujam.stocktonkiwanis.com/uploads/1/3/1/4/131438486/doxame.pdfIn PDF document text
  • http://fontawesome.iohttp://fontawesome.io/license/In 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/c4f6e0e8-017d-4de4-8e15-1171bfabace3/dimitutesem.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4962ec8f-1db8-4c07-8b36-26171041a5f5/36530870469.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/59bf830a-4e85-455f-99f3-cb137edd76ee/71260588076.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7ce4a8cb-906b-45a2-8870-cf7d70ffe8c0/92623319409.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/948fd7bf-e972-4619-bc76-52fef0bd1ee4/newebarazu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0c6dab6c-ba96-464f-963f-f9323a541190/37885123817.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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