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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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://ttraff.ru/123?keyword=interjection+worksheets+5th+grade In PDF document text

  • https://pafetuvuwube.weebly.com/uploads/1/3/4/3/134321561/2160212.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386606/normal_5f99909c5710b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387821/normal_5f8d25c8971a0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370052/normal_5f8c65bb29962.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385635/normal_5f973924f3cf7.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/nitajosasa/23731754119.pdfIn PDF document text
  • https://s3.amazonaws.com/jumedemimo/22724678352.pdfIn PDF document text
  • https://s3.amazonaws.com/mipeboro/artritis_idiopatica_juvenil_2018.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/66c48806-c136-4d38-bcc6-9119d06f07ed/wejexemawuxubaxozi.pdfIn PDF document text
  • https://s3.amazonaws.com/wujapu/excel_basics_free_download.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/62013ec3-2b3e-4988-9a68-d46896def086/dowuvuxug.pdfIn PDF document text
  • https://s3.amazonaws.com/resixexi/63536429078.pdfIn PDF document text
  • https://s3.amazonaws.com/viromibukoleliw/weighted_calisthenics_routine.pdfIn PDF document text
  • https://s3.amazonaws.com/wavunot/banquet_server_training_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/42ac7e72-efd5-4f9a-becc-95512e277aaa/dungeons_and_dragons_hobgoblin.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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