Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• PDF carries website-builder CDN document link farm medium PDF_CDN_PDF_LINK_FARM
  PDF contains many clickable PDF links parked on website-builder CDNs or simple download gateways together with visible ebook, manual, or download lure text. This matches generated SEO document carriers used to route users through untrusted link/download chains; the PDF itself is an inert link carrier.
• 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=the+essential+theatre+11th+edition+pdf+download In PDF document text

  • https://cdn-cms.f-static.net/uploads/4411702/normal_5f934b64ae808.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4404990/normal_5fb5d0f75673a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4413111/normal_5fa2164bc527c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368493/normal_5fb8a9104cf57.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376870/normal_5fa63c4bd5335.pdfIn PDF document text
  • https://s3.amazonaws.com/zetare/america_allen_ginsberg.pdfIn PDF document text
  • https://s3.amazonaws.com/dazemi/character_and_antecedent_certificate_download.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366973/normal_5f8887384a3dc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372354/normal_5f8a0d0486115.pdfIn PDF document text
  • https://zatajiwivovib.weebly.com/uploads/1/3/4/5/134529671/neritafifukerunide.pdfIn PDF document text
  • https://s3.amazonaws.com/didowugorokirug/26992527516.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385412/normal_5f921200f2456.pdfIn PDF document text
  • https://s3.amazonaws.com/fotojipifuzitul/74839541688.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off000154c9.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off000154c9.bin)
  • https://uploads.strikinglycdn.com/files/bd751c6a-b4d3-43fb-84c3-66a85e6e9af4/wafumibefudesexinuko.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 extracted file (font_01_sfnt_off000154c9.bin)

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