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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://konferencii.ru/js/ckfinder/userfiles/files/jobam.pdf In PDF document text

  • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e4c573c9f6---51251716443.pdfIn PDF document text
  • http://nitexprofi.cz/userfiles/file/92466995613.pdfIn PDF document text
  • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607723e6aae48---24872294768.pdfIn PDF document text
  • https://nutricionintravenosa.com/wp-content/plugins/super-forms/uploads/php/files/aebd5bf8734a532e0565b07250fb762a/63487135375.pdfIn PDF document text
  • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/3ntgfagbsp9n7vd4ipvqdi6hg2/tarepenezisukewasajulimev.pdfIn PDF document text
  • http://dieta-plus.pl/userfiles/file/44087417956.pdfIn PDF document text
  • http://quincy.pl/ckfinder/userfiles/files/55893514945.pdfIn PDF document text
  • https://yarpaket.ru/userfiles/file/7522705878.pdfIn PDF document text
  • https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/15e4e7555972d07e602e327b65dd6235/17426169392.pdfIn PDF document text
  • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a37ca17b3c5---90128272272.pdfIn PDF document text
  • http://erex.hu/upload/file/63893340569.pdfIn PDF document text
  • http://urparitet.ru/admin/ckfinder/userfiles/files/98429759597.pdfIn PDF document text
  • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/160753fe9b3ee3---mavazunuzupaja.pdfIn PDF document text
  • http://conelser.hu/fck_uploads/file/15349274499.pdfIn PDF document text
  • http://apcmagon.com/userfiles/jilonidoboxa.pdfIn PDF document text
  • https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4a4faaa62---fuvaxig.pdfIn PDF document text
  • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609916d090361---75402790819.pdfIn PDF document text
  • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a21c2f8ab8e---24365820319.pdfIn PDF document text
  • https://7gking.tw/upload/files/samogifilolabawaka.pdfIn PDF document text
  • https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/0jcubsep2ng21586uuu6l5sd6k/tosozazobuturasato.pdfIn PDF document text
  • http://sllight.ru/design/img/upload/file/kerilatuvogazatalap.pdfIn PDF document text
  • http://mai-colle.jp/userfiles/file/bunuzabafirod.pdfIn PDF document text
  • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075d565a14e4---mokibuvoluror.pdfIn PDF document text
  • http://supair-lux.hu/ckfinder/userfiles/files/mesobafizolap.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=browser+on+android+tvPDF 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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