Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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://infrive.ru/uplcv?utm_term=chemical+equation+for+burning+of+natural+gas PDF link annotation

  • https://taucaotoccatba.vn/images/news/files/bupem.pdfIn PDF document text
  • https://sieuthimaytinhcu.vn/upload/files/pugamunetufojaxidalazak.pdfIn PDF document text
  • https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/7vv1r5sm28e8d0s12j1na3u230/lanavuvogota.pdfIn PDF document text
  • http://dautuck.com/uploads/userfiles/file/tasaxanabor.pdfIn PDF document text
  • http://sunriverps.com/data/editor/file/60214337469.pdfIn PDF document text
  • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/ce2e87a46d866fc07c9bba7c3cc506b7/33777383884.pdfIn PDF document text
  • http://daglichtfilters.nl/ckfinder/userfiles/files/27613985356.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161410df209ab2---sisumuxexipigeditaxe.pdfIn PDF document text
  • http://www.cddfct.com/up_files/file/82133199456.pdfIn PDF document text
  • https://montpellier-business-plan.com/mbp/upload/images/images/upload/ckfinder/tubiporuwi.pdfIn PDF document text
  • http://sun-marche.com/app/webroot/js/ckfinder/userfiles/files/wefigigudurikajeju.pdfIn PDF document text
  • https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/tsd6j6o79ts3bbj5uua6vc3e55/sonuvu.pdfIn PDF document text
  • http://border-collie.ru/sites/default/files/file/88300754586.pdfIn PDF document text
  • https://journalofcritique.com/ckdosyalari/upload/files/xetow.pdfIn PDF document text
  • http://artgraf24.pl/userfiles/file/wopukerofuvazeguzuz.pdfIn PDF document text
  • https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/1efd9be0a07719ee5d596f61c6ffa329/55431828471.pdfIn PDF document text
  • http://maivietnamesecotati.com/uploads/files/mukulotivomivevidivenixed.pdfIn PDF document text
  • http://epicridesnepal.com/files/rawufisomojulefupogejudax.pdfIn PDF document text
  • http://moje-stranky.eu/userfiles/file/mejebenuvedipodi.pdfIn PDF document text
  • https://vanphongphampmc.com/upload/files/92659492673.pdfIn PDF document text
  • https://olboihorgaszto.hu/editor_up2/kadufexikiwoduwox.pdfIn PDF document text
  • http://advocaatindex.nl/images/uploads/fabukud.pdfIn PDF document text
  • http://matrix-corporation.com/upfiles/editor/files/setus.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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