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=entrepreneurship+case+studies+with+questions+and+answers In PDF document text

  • http://demix.keepitcleanldn.co.uk/uploads/1/3/1/3/131384424/mitelijemojiwuf.pdfIn PDF document text
  • http://files.orchardsexecutivegolf.com/uploads/1/3/1/4/131408209/rataguzura-patorufew-rogofa.pdfIn PDF document text
  • http://files.holistichealthactivation.com/uploads/1/3/1/1/131163945/dopasetubelez.pdfIn PDF document text
  • http://files.labyrinthcreations.com/uploads/1/3/0/8/130874642/8121399.pdfIn PDF document text
  • http://jokum.sandiegobestpartyrentals.com/uploads/1/3/1/0/131070147/247fe9152.pdfIn PDF document text
  • https://site-1036851.mozfiles.com/files/1036851/44388271005.pdfIn PDF document text
  • https://site-1040325.mozfiles.com/files/1040325/28876166555.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/d074820e-4baf-455b-8a69-049c1e9ee1af/labem.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/973aa7ed-21f7-4a2f-8eaa-513acd52fbbe/malifawupekedexaludis.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/27f70830-b26d-415b-992f-9d5c9acb86c7/20161325357.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5600c6d7-85ee-49cb-b3be-7b4f5ad8ba48/18009607804.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5a4e8e8f-4e50-49ea-817b-9b29ada7f229/39856366045.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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