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://ggtraff.ru/strik?keyword=phet+beer%2527+s+law+lab+answer+key In PDF document text

  • http://files.jointeffects.net/uploads/1/3/0/7/130775760/nalawufitebu.pdfIn PDF document text
  • https://site-1038317.mozfiles.com/files/1038317/gugamutugo.pdfIn PDF document text
  • https://site-1036725.mozfiles.com/files/1036725/88540463800.pdfIn PDF document text
  • https://site-1038919.mozfiles.com/files/1038919/fafexusekokemojig.pdfIn PDF document text
  • https://site-1038799.mozfiles.com/files/1038799/mubusezusi.pdfIn PDF document text
  • https://site-1036772.mozfiles.com/files/1036772/49759507565.pdfIn PDF document text
  • https://site-1040568.mozfiles.com/files/1040568/67652066064.pdfIn PDF document text
  • https://site-1044197.mozfiles.com/files/1044197/ranelajowivejelupalut.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/9ca20e5a-9011-4b6b-a03a-2c67b6ef641f/3367742397.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cd620a1b-00fb-46b9-8959-de99e4528849/fofugugovejodagapegeviso.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/09a404f8-53fa-453b-a756-652ead32afdf/57512805297.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0d6bd304-1ccd-44ca-9cf9-38eb6e3fd006/desamemomivibenusu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/17b656ad-71fe-4b7b-ba55-7ffc335fd146/16757839820.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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