Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a2278bca6d---vovoxeritapo.pdf In PDF document text

  • http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/3bad4082918b35365e0cdec85089c947/25432139149.pdfIn PDF document text
  • http://www.yoko-ono.be/images/userfiles/file/73046024487.pdfIn PDF document text
  • http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a37af2927c7---71679091018.pdfIn PDF document text
  • https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2e59f63b3b---37770581022.pdfIn PDF document text
  • https://myupfield.link/wp-content/plugins/super-forms/uploads/php/files/nbrv5njujgt8836skht3rtt6j1/lexewego.pdfIn PDF document text
  • https://tlpnw.com/wp-content/plugins/super-forms/uploads/php/files/bd23ebb5a95bb754b65fee497e9aacf3/wunasotutilawotopifog.pdfIn PDF document text
  • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5961fae9f6---sinozarerefuwewepoputud.pdfIn PDF document text
  • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/nco3eru17gv1i09ja98s98ielg/32669084649.pdfIn PDF document text
  • http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/63234896074.pdfIn PDF document text
  • http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606fe177764ea---26992074226.pdfIn PDF document text
  • http://firewheels.pe/userfiles/file/2888856885.pdfIn PDF document text
  • http://mirutte.com/newsfiles/files/95904533598.pdfIn PDF document text
  • http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/1609b9700450d2---26512369032.pdfIn PDF document text
  • https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/8dnmbvq2b8nm6t1v3f15bg0lr0/62324984512.pdfIn PDF document text
  • https://kermoulin.com/userfiles/file/79955443957.pdfIn PDF document text
  • http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160940c47eff16---sewimagib.pdfIn PDF document text
  • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1608ac1a4f39d6---15417134417.pdfIn PDF document text
  • https://rpdev.org/ckfinder/userfiles/files/99950845667.pdfIn PDF document text
  • http://eastendmediation.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/pototop.pdfIn PDF document text
  • https://atphp.ch/userfiles/file/nijegazubelu.pdfIn PDF document text
  • http://www.zywawiara.pl/pliki/lomidome.pdfIn PDF document text
  • https://www.acetechnology.co.in/wp-content/plugins/super-forms/uploads/php/files/voknss1g4lduvicamjbjjb40b6/31063942100.pdfIn PDF document text
  • http://albarossa.jp/js/upload/files/45369232264.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=fellowes+paper+shredder+customer+servicePDF link annotation
  • 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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