Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• 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://cctraff.ru/123?utm_term=mcdougle+middle+school+back+to+school In PDF document text

  • https://cdn-cms.f-static.net/uploads/4368246/normal_5f87e932d21a3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382789/normal_5f8d9a3596ab6.pdfIn PDF document text
  • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/zuzuw-gavodokev-sanijalunupotij-pixetu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4454055/normal_5fa58a3d73458.pdfIn PDF document text
  • https://bawigadumifop.weebly.com/uploads/1/3/4/4/134494387/3362741.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/7b06c049-f170-46cc-ac14-d3e4b9910f87/16604283692.pdfIn PDF document text
  • https://s3.amazonaws.com/xisefowu/11119885058.pdfIn PDF document text
  • https://s3.amazonaws.com/xanebavifamopez/cambios_psicosociales_en_el_adulto_mayor.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1dcb7e11-4110-4ebe-971b-f2b6ea769133/42293926068.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e34b869d-860e-40d0-a875-a107ef4576b7/ccisd_2019_2020_calendar.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7240c7e8-8ab8-418a-841e-86df40a926c7/que_es_un_ecomapa.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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