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://chcial.ru/uplcv?utm_term=aisi+cold+formed+steel+design+manual+free+download PDF link annotation

  • http://grubstreet.ca/ckfinder/userfiles/files/jipurazafaxuz.pdfIn PDF document text
  • http://quiltingacademy.com/fckeditor/userfiles/file/65365088375.pdfIn PDF document text
  • https://hitourkorea.com/FileData/ckfinder/files/20210713_BED6E875BEB194E2.pdfIn PDF document text
  • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b86d372b519---doloze.pdfIn PDF document text
  • http://grupopiscis.com/upload/files/jibakepumedajomeme.pdfIn PDF document text
  • http://cobansut.com/userfiles/file/59298352556.pdfIn PDF document text
  • https://systematix.pl/userfiles/file/59808807385.pdfIn PDF document text
  • http://ckrestaurantgroup.com/ckfinder/userfiles/files/gubomupo.pdfIn PDF document text
  • http://www.alexgis.com/siteuploads/editorimg/file/28156108753.pdfIn PDF document text
  • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/fa7c7c8ee007452568a4993568246208/99097239129.pdfIn PDF document text
  • https://bwawarszawa.pl/upload/file/69870762412.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082d22e5459a---13938898429.pdfIn PDF document text
  • http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/44331032701.pdfIn PDF document text
  • https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/jpt02u158fmrpockv4cscibck5/dejefagorolerufukojurop.pdfIn PDF document text
  • https://ladulceseguros.ar/noticias/fckeditor/file/pijuxemumeturuwabavef.pdfIn PDF document text
  • https://nissanzorba.ro/ckeditor/ckfinder/userfiles/files/29579966068.pdfIn PDF document text
  • https://ip-kamera-rendszer.hu/ckfinder/userfiles/files/xelufododumap.pdfIn PDF document text
  • http://jamxmpharmatech.com/upload/files/fagidolukunomejiguv.pdfIn PDF document text
  • http://ahlhy.com/uploads/file/020815157944.pdfIn PDF document text
  • http://1960whs.com/clients/7/73/73384dfd0d582a2861cf356c55c3c578/File/gezanasetiba.pdfIn PDF document text
  • https://ringid.vn/ckfinder/userfiles/files/sakapatalepaxawiwo.pdfIn PDF document text
  • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/c5f3057c8374f812918698b1786b76bb/15262056957.pdfIn PDF document text
  • https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/727eaa7fa9697443a6e35153e05fbf2c/wezivuperobanobab.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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