Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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=concrete+grade+and+mix+ratio+table+pdf PDF link annotation

  • http://redskap.ru/userfiles/file/wuzadariw.pdfIn PDF document text
  • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ad7eefab42c---91619387080.pdfIn PDF document text
  • http://dkmmotor.com/files/userfiles/file/77781212730.pdfIn PDF document text
  • http://rezidencianestor.sk/app/webroot/files/ckeditor/files/582035726.pdfIn PDF document text
  • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161188fc3f3998---46920691968.pdfIn PDF document text
  • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b13e5dee06b.pdfIn PDF document text
  • https://www.shinoda-usa.com/ckfinder/userfiles/files/91704796451.pdfIn PDF document text
  • http://hasyo.net/files/file/64129494850.pdfIn PDF document text
  • http://seibyou-koujien.com/files/files/sefepi.pdfIn PDF document text
  • http://xedaptap.net/userfiles/file/67445680012.pdfIn PDF document text
  • http://regcureguide.com/files/files/91492755982.pdfIn PDF document text
  • https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160b90e06de65f---88739953952.pdfIn PDF document text
  • http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/j8u9tdvmapns5vgabp7j6ed0n1/18751732489.pdfIn PDF document text
  • https://stagerightstaging.com/wp-content/plugins/super-forms/uploads/php/files/2cff2797a86b3fc59755e278708b07fd/58885735377.pdfIn PDF document text
  • https://aawyx.com/sites/default/imageuser/file/letebinowig.pdfIn PDF document text
  • https://securityguardsupply.org/php/uploads/file/41563242632.pdfIn PDF document text
  • https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610955f83c82c---milamomasetitazolofobe.pdfIn PDF document text
  • http://zuche0551.com/upload/file/binagamu.pdfIn PDF document text
  • https://chachachat.info/js/ckfinder/userfiles/files/78233883686.pdfIn PDF document text
  • http://bsbcarpet.com/userfiles/file/vojotiwixaterorefibasoxiz.pdfIn PDF document text
  • https://youstore21.com/wp-content/plugins/super-forms/uploads/php/files/5ce7fbaf015bb3e1b72dd57d03c94782/jomovuvedikuzofebegokosab.pdfIn PDF document text
  • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/16105f3afb60fb---72746554020.pdfIn PDF document text
  • http://olgapolyakova.de/files/files/54194472024.pdfIn PDF document text
  • https://a1-recruitment.fr/v2011/Files/fck_upload/file/letapidimetu.pdfIn PDF document text
  • http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16085f7ae5b8da---wafomipiziv.pdfIn PDF document text
  • https://sanidom.pl/img/file/29283375806.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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