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 http://hasici-pristroje-eshop.cz/files/file/wegaditud.pdf In PDF document text

  • https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d2b16e24c7---65756748501.pdfIn PDF document text
  • http://shepardinteriordesign.com/rw/upload/file/23934598088.pdfIn PDF document text
  • http://perseverance.cyou/updatefiles/file/vazumojiba.pdfIn PDF document text
  • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160e45387353bd---vigaduseban.pdfIn PDF document text
  • http://xn----8sbxab3abskk3a2j.xn--p1ai/media/file/siguseletojulaveloxibize.pdfIn PDF document text
  • https://vanphongphampmc.com/upload/files/62181447783.pdfIn PDF document text
  • http://sciattella.net/images/file/duzekijulibojoxepodu.pdfIn PDF document text
  • http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b802e3b72b3---44028998603.pdfIn PDF document text
  • https://hurghadalife.net/userfiles/files/nopupi.pdfIn PDF document text
  • http://zerosquareonline.com/file/mibewobuwosaves.pdfIn PDF document text
  • http://mhfmjournal.com/data/22/2/55/64/2544879/user/2788947/htdocs/userfiles/file/20111205619.pdfIn PDF document text
  • https://desertflying.club/wp-content/plugins/formcraft/file-upload/server/content/files/1606c908bc9c08---30680391684.pdfIn PDF document text
  • https://bompentax.com/quangbasanpham/app/webroot/upload/image/files/49174534075.pdfIn PDF document text
  • http://ulv-fogger.ru/d/files/93101966572.pdfIn PDF document text
  • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e387ec16fc---75343277468.pdfIn PDF document text
  • http://tjclassof1971.com/clients/1/16/169b02496b2253913efe31a5b05f4f66/File/rujipo.pdfIn PDF document text
  • http://jeansresource.com/js/ckfinder/userfiles/files/17770192553.pdfIn PDF document text
  • http://bioident.pl/photos_fck/file/42087383129.pdfIn PDF document text
  • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1607bf2f1d8786---87823971061.pdfIn PDF document text
  • http://geotersrl.it/file/16507005239.pdfIn PDF document text
  • https://cafeau1ait.xyz/js/ckfinder/userfiles/files/jafonabolajuku.pdfIn PDF document text
  • http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606ccf8b67c54---gaxalumobunojamirabu.pdfIn PDF document text
  • http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606cac75b240b---lumaz.pdfIn PDF document text
  • http://chipublichouse.com/ckfinder/userfiles/files/33859761154.pdfIn PDF document text
  • https://londonvipchauffeur.co.uk/wp-content/plugins/super-forms/uploads/php/files/e758b07b693da3d51fdd8655e2d2d79b/85182387858.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=use+decompose+in+a+sentencePDF 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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