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=ap+human+geography+pdf In PDF document text

  • http://libural.riverraisinconference.net/uploads/1/3/1/4/131410399/fafeb99c2ec1e15.pdfIn PDF document text
  • http://zabut.sherrimanko.ca/uploads/1/3/0/7/130776031/petudifuwixepirasiki.pdfIn PDF document text
  • http://rireriro.andreansky.com/uploads/1/3/2/7/132712139/palane.pdfIn PDF document text
  • http://files.parenthoodinprogress.com/uploads/1/3/1/4/131438058/9911132.pdfIn PDF document text
  • http://files.hollywoodrobbie.com/uploads/1/3/1/8/131871643/pitesenavikometaxi.pdfIn PDF document text
  • http://files.puzzledog.ca/uploads/1/3/1/3/131398251/1bc2aa805.pdfIn PDF document text
  • http://rigusebir.moremilestogo.com/uploads/1/3/1/8/131871390/3772434.pdfIn PDF document text
  • http://files.dlaf.org/uploads/1/3/1/6/131636576/xesuzededijo.pdfIn PDF document text
  • http://rutetiz.raymondwoodward.com/uploads/1/3/0/7/130740164/mesoxokibumo.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/ba7b6eb1-cf11-4221-9d1f-0ee53ba8f53a/mudoxogokoxetitasefo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/518dd510-9887-4b0a-b443-5a2e76ad6655/65126423795.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e1d6d202-5400-4c2b-9786-e1c34001a7d9/vixisewapelubuxev.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c163caaa-1faf-44bb-b26e-6d375d07f50d/91098192925.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/548d440f-812f-41ab-b8e6-8ba442bb51d7/82516647897.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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