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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://krisoc.ru/uplcv?utm_term=amiibo+spoof+android PDF link annotation

  • https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16138577007f2b---15430079046.pdfIn PDF document text
  • http://autosoftware.company/autoresponders_images/files/mosepimo.pdfIn PDF document text
  • https://perfecthospital.org/ckfinder/userfiles/files/31636639072.pdfIn PDF document text
  • http://vivaibonomo.it/userfiles/files/virogawozar.pdfIn PDF document text
  • https://patriciogaete.com/upload/file/bisiwo.pdfIn PDF document text
  • https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613a9d749c769---gaxibitas.pdfIn PDF document text
  • https://maydangson.com/vietkiendo/upload/file/gowoxap.pdfIn PDF document text
  • http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1612f6b3fbacdd---83618668000.pdfIn PDF document text
  • http://colorsoftexas.com/ckfinder/userfiles/uploads/tipopanaduk.pdfIn PDF document text
  • https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/50620812c8a5b97329e2dfcd812626b7/13690909355.pdfIn PDF document text
  • http://sobinco.cz/ckfinder/userfiles/files/29786445846.pdfIn PDF document text
  • http://zentrumok.com/userfile/files/pimamobedobukolizafux.pdfIn PDF document text
  • http://andreuma.madteam.net/ckfinder/userfiles/files/kudepozexefejisi.pdfIn PDF document text
  • http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612fc10580d65---83956387174.pdfIn PDF document text
  • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/kchetstek3np2obbmsnc79rqo7/69029481724.pdfIn PDF document text
  • http://pkpneu.cz/userfiles/file/91767844446.pdfIn PDF document text
  • http://asude.istanbul/ck_images/files/kuliparinopunuwusilabixax.pdfIn PDF document text
  • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/16130ee4600374---jetipefawob.pdfIn PDF document text
  • http://ccsilver.kr/files/fckeditor/file/53334673561362d11c1490.pdfIn PDF document text
  • http://cuacuonnhaxuongbinhduong.com/upload/files/95959525885.pdfIn PDF document text
  • https://trimix.bg/UserFiles/File/3224086317.pdfIn PDF document text
  • https://cvssteelex.com/ckfinder/userfiles/files/78803881494.pdfIn PDF document text
  • https://partnermind.cz/images/files/tupibo.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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