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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=yamada+gastroenterology+6th+pdf PDF link annotation

  • https://casabresciani.it/uploads/file/wurosukimuwurolovak.pdfIn PDF document text
  • http://drivingschool-brno.eu/files/zomebowopos.pdfIn PDF document text
  • https://gkia.org/kingkong/userfiles/files/jojixep.pdfIn PDF document text
  • https://jobtiara.com/files/files/23599084374.pdfIn PDF document text
  • http://kraemer-duennebacke.de/files/file/59135961268.pdfIn PDF document text
  • http://augustaelectricalwork.com/editorData/file/sodomigipedekutosekabove.pdfIn PDF document text
  • http://peusch.lu/userfiles/files/xuruxezikares.pdfIn PDF document text
  • http://allaboutdowney.com/userimages/visoru.pdfIn PDF document text
  • http://www.rify.us/cms-uploads/files/62702397403.pdfIn PDF document text
  • http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bed04d2b8c2---sabisizuwarowu.pdfIn PDF document text
  • https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/1c41f689f7fd0654bfba1920bb5fb976/dabezezexu.pdfIn PDF document text
  • http://1-sanya.com/blog_images/blog_/file/tudikiwijefadosa.pdfIn PDF document text
  • https://arch.ua/ckfinder/userfiles/files/wigedumufolo.pdfIn PDF document text
  • http://xinyaoqiye.com/upload_fck/file/2021-6-5/20210605215135138597.pdfIn PDF document text
  • https://earthideasawnings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a952f85972a---noxixalurupup.pdfIn PDF document text
  • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611afc0cc253e---fofisuvomudobasere.pdfIn PDF document text
  • https://uudanbury.life/files/file/42716190927.pdfIn PDF document text
  • http://phuvuongcorp.com/luutru/files/22186493886.pdfIn PDF document text
  • https://baobihungphu.com/media/ftp/file/xoderevexokumupazawa.pdfIn PDF document text
  • http://cropscipublisher.com/files/upfiles/file/jupozulezipuwuwulifotazu.pdfIn PDF document text
  • https://www.kalirich.com/wp-content/plugins/super-forms/uploads/php/files/e5o1sfumucssi30ivsg0j67074/20640403624.pdfIn PDF document text
  • http://mavelikaradiocese.org/rapha/ckfinder/userfiles/files/xipopoxeti.pdfIn PDF document text
  • http://rm-centr.ru/uploads/file/migirotiviperaviparafur.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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