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 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.
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://krisoc.ru/uplcv?utm_term=ocpjp+8+book+pdf+free+download PDF link annotation

  • https://ciar.vn/uploads/image/files/92814206825.pdfIn PDF document text
  • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b520fa70655---80659057874.pdfIn PDF document text
  • http://zit-tech.com/userfiles/files/fuduwap.pdfIn PDF document text
  • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/160710876840c7---77099273007.pdfIn PDF document text
  • http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609fd1391a9b9---73173898412.pdfIn PDF document text
  • http://sieuthihatgiong.vn/webroot/img/files/wagijalixis.pdfIn PDF document text
  • http://arlingtonhigh1960.com/clients/881088/File/32700861599.pdfIn PDF document text
  • http://gildiamasterov.ru/userfiles/file/21472514694.pdfIn PDF document text
  • https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc3bf5156e3---fuzopu.pdfIn PDF document text
  • https://beautydiction.com/ckfinder/userfiles/files/logelexapejoke.pdfIn PDF document text
  • http://to-kajihan.net/js/upload/files/30337376087.pdfIn PDF document text
  • http://teerosy.com/ipp/images/uploads/files/69328714065.pdfIn PDF document text
  • http://t-eamplus.de/web/editor/files/ziduxip.pdfIn PDF document text
  • http://evergladesharvesting.com/ckfinder/userfiles/files/77010526008.pdfIn PDF document text
  • https://cavalier-king-charles-spaniel.ch/userfiles/file/bakujovifuwuxejotif.pdfIn PDF document text
  • http://www.darvidproperty.com/news/file/32917953107.pdfIn PDF document text
  • https://bandai-k.com/userfiles/file/40894195906.pdfIn PDF document text
  • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/827u44d8dn8kg2sqbn5r8a3860/gofagavepaxuwotiwamima.pdfIn PDF document text
  • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8069b0fc4d---wekitafuperuvimosubod.pdfIn PDF document text
  • https://krono-original.vn/Images_upload/files/91019398554.pdfIn PDF document text
  • http://china-hold.com/UploadFile/file/20210818103349752.pdfIn PDF document text
  • http://anhuifan.com/upload_fck/file/2021-5-21/20210521055443969586.pdfIn PDF document text
  • http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a492892b076---29060417753.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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