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://laborke.ru/uplcv?utm_term=no+installed+apps+have+requested+notification+access PDF link annotation

  • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615161818a178---22696282449.pdfIn PDF document text
  • http://irths.com/upload_files/files/vuwozavabimurodegud.pdfIn PDF document text
  • https://darshanam.com/ckfinder/userfiles/files/xodak.pdfIn PDF document text
  • https://projetounificado.com/uploads/files/duwigirabafi.pdfIn PDF document text
  • http://levne-pohary.cz/UserFiles/File/42516840608.pdfIn PDF document text
  • http://greddy.com/admin/common/ckfinder/userfiles/File/nivago.pdfIn PDF document text
  • http://heldermusic.nl/ckfinder/userfiles/files/kakufoxanegogokove.pdfIn PDF document text
  • https://dlt-nkp.com/fileupload/file/57498832214.pdfIn PDF document text
  • http://e-baze.lv/images/site/file/43603185801.pdfIn PDF document text
  • https://szabobuszrendeles.hu/files/files/58266788405.pdfIn PDF document text
  • http://chono.mn/uploads/userfiles/files/45404663421.pdfIn PDF document text
  • https://volnynaklad.cz/data/file/denafasuxibi.pdfIn PDF document text
  • http://www.grupoaccs.net/ckfinder/userfiles/files/90979108651.pdfIn PDF document text
  • https://permargi.com/files/galeria/files/mutobosuzazaxagufud.pdfIn PDF document text
  • https://iqrainternationalschool.org/_assets/files/dutulolo.pdfIn PDF document text
  • http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1614aef1933c4c---garovasewunelabalurozoves.pdfIn PDF document text
  • http://home-hj.com/up_photo/file/74982805939.pdfIn PDF document text
  • http://grupophi.es/uploads/files/30827356232.pdfIn PDF document text
  • http://smartwealthhk.com/userfiles/mavejo.pdfIn PDF document text
  • http://hiroi-es.info/yamituki-n/uploads/files/785560133.pdfIn PDF document text
  • https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/27aa24cc30ad76753d3101d6fb212a78/63481918297.pdfIn PDF document text
  • http://rasciindia.com/firetech/ckupload/files/49112715530.pdfIn PDF document text
  • http://nagakuratrading.com/js/upload/files/serebuxosew.pdfIn PDF document text
  • http://eldmsh1.ru/js/ckfinder/userfiles/files/28221989415.pdfIn PDF document text
  • https://vinacomvietnam.vn/uploads/news_file/lixumijopaxafukejanag.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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