Malicious PDF — malware analysis report

Heuristics 7

• 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 link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not 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.
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://queure.ru/uplcv?utm_term=risorgimento+italiano+sintesi+pdf PDF link annotation

  • http://ca1970.com/clients/10044/File/65294816032.pdfIn PDF document text
  • http://worldwidefilipinoalliance.com/uploadedFiles/files/6590890896.pdfIn PDF document text
  • http://apartamentosalbatros.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075f0bc10b45---12527799054.pdfIn PDF document text
  • https://voziky-paletove.cz/mctree.cz/pictures/other/files/zugomupap.pdfIn PDF document text
  • https://jiu-hang.com/upfiles/editor/files/21188712042.pdfIn PDF document text
  • http://pointerboards.com/uploads/admin/files/11218456815.pdfIn PDF document text
  • https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/bea596af9b5a3e33be02994436da3068/10808053373.pdfIn PDF document text
  • http://ubestsports.com/imager/files/20210727090031.pdfIn PDF document text
  • http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160885528d1dd7---21402215464.pdfIn PDF document text
  • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160946bfb569c1---41021201884.pdfIn PDF document text
  • http://rokakisreunion.com/clients/a/a8/a85ca1e4cfc2bb88d767af442173b437/File/49186125069.pdfIn PDF document text
  • http://limoride.net/gallery/file/kugalekem.pdfIn PDF document text
  • http://indel.sk/userfiles/file/ferodojutunegukegiji.pdfIn PDF document text
  • http://dynamicyunnan.com/ckfinder/userfiles/files/72632895300.pdfIn PDF document text
  • http://mmdplus.com/userfiles/files/20210702_104723.pdfIn PDF document text
  • http://hilltopperalumni.com/clients/9/93/936f23dc4abb03f6d4a1aae2c8a32781/File/66022521180.pdfIn PDF document text
  • http://charontrade.hu/data/file/wodonalugiguke.pdfIn PDF document text
  • http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/46913720681.pdfIn PDF document text
  • https://eldorado777.ro/upload/editor/file/31378052098.pdfIn PDF document text
  • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607a301735f9f---fiziduvax.pdfIn PDF document text
  • http://kapli74.ru/upload_picture/95029385602.pdfIn PDF document text
  • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/160ffc99334f1a---vexixewugotalerixuf.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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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