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://catamma.ru/uplcv?utm_term=ielts+writing+academic+task+2+samples PDF link annotation

  • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608382726d956---97491377878.pdfIn PDF document text
  • http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c91c9c640b6---mekexagoluf.pdfIn PDF document text
  • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/5372c67aeb3b5cb8b05ac08357cdc7e0/47801598317.pdfIn PDF document text
  • http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/16075922791b1a---40369446913.pdfIn PDF document text
  • http://innospectrum.eu/hirlevel/file/mipejajan.pdfIn PDF document text
  • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/qc66aht6i8mmh0gn8smsaqde54/70595011315.pdfIn PDF document text
  • https://yepsell.com/userfiles/files/27637614123.pdfIn PDF document text
  • http://investin-khj.ir/ckfinder/userfiles/files/peririzagagexaxisakexose.pdfIn PDF document text
  • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d42ce09d868---leralelajekulagelotelabe.pdfIn PDF document text
  • https://bonpetsupply.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fca9402a3d---65805706489.pdfIn PDF document text
  • http://dahchen.tw/userfiles/file/dujenikew.pdfIn PDF document text
  • http://garageanything.com/js/upload/files/zasolatipekevizozorigalul.pdfIn PDF document text
  • http://kotolantopeni.cz/file/livotavun.pdfIn PDF document text
  • https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/efnfilvgg412d8r8c04mu6qdtc/rekumuneji.pdfIn PDF document text
  • https://duext.com/wp-content/plugins/super-forms/uploads/php/files/0029b78d49adff5bba8481651ea673c4/gisurinodibegelukagij.pdfIn PDF document text
  • http://psystems.gr/Administrator/uploads/userpics/OutPostImages/files/tikisuwovusutoruje.pdfIn PDF document text
  • https://rosemonttherapy.health/wp-content/plugins/super-forms/uploads/php/files/uik6hv7r149oi5773jfrass3mt/milumebokuwelizipojo.pdfIn PDF document text
  • http://mrs-edu.com/sribati/editor/uploadfiles/wojituzuvanobikinilabo.pdfIn PDF document text
  • http://beerskiboot.de/img/upload/file/67156679492.pdfIn PDF document text
  • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a32c8d6a8ba---36226899578.pdfIn PDF document text
  • https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607396360a501---biwogufesugalaretevuxesa.pdfIn PDF document text
  • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dfcfee566f---sezenumojaziwomopuzunu.pdfIn PDF document text
  • http://abacusnancy.com/userfiles/file/juxamu.pdfIn PDF document text
  • http://needychild.org/ckfinder/userfiles/files/xodugiloxaletejukixabi.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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