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://crewmak.ru/uplcv?utm_term=ielts+writing+answer+sheet+pdf PDF link annotation

  • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/55050626b3be1b00cdcaead342b45615/xavasedepiposi.pdfIn PDF document text
  • http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/8bde6df0bdaedcd3890cfff2658ca5dc/2482302810.pdfIn PDF document text
  • http://www.portofmiamitunnel.com/system/js/back/ckfinder/userfiles/files/bodifobejovowe.pdfIn PDF document text
  • http://bjhtdszdh.com/v15/Upload/file/20218152127545891.pdfIn PDF document text
  • https://samowar.ch/upload/file/mifojixobabilobevumofupor.pdfIn PDF document text
  • http://bluecars.pl/userfiles/file/xagosipifudokax.pdfIn PDF document text
  • https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/ee12ec4a301c33eabd3a6153a51dce3c/50900559945.pdfIn PDF document text
  • https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/2a321a0df61f294f851e0fb12a9e234f/15042372438.pdfIn PDF document text
  • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/161306c83c515a---27525459014.pdfIn PDF document text
  • https://stonebuild.bg/f/uploads/files/gedij.pdfIn PDF document text
  • http://thrifty-uy.com/files/others/nepamugugivavo.pdfIn PDF document text
  • http://neboskreb-irk.ru/uploads/userfiles/files/buzisakoxajodirodole.pdfIn PDF document text
  • http://tokyoracing.hu/userfiles/file/6092587184.pdfIn PDF document text
  • http://www.alex-vasilkov.ru/images/wisdom/file/62394967774.pdfIn PDF document text
  • http://carscaso.com/js/upload/files/jupepututike.pdfIn PDF document text
  • http://splogservice.ru/content/file/pezekujasos.pdfIn PDF document text
  • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/e3o1at5nsvds6fq5jvlhd7cgq5/21175985198.pdfIn PDF document text
  • http://mojahotels.com/ckfinder/userfiles/files/15844388757.pdfIn PDF document text
  • https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0f45f73bf7---99831547016.pdfIn PDF document text
  • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16124e79592f33---leluxasawoxavemorarig.pdfIn PDF document text
  • http://nokianhakkablue.ru/ckfinder/userfiles/files/jipakafuwi.pdfIn PDF document text
  • https://theatresaucinema.fr/uploads/file/vidisegubakosubi.pdfIn PDF document text
  • http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607c7e4c8e4de---pixoge.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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