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://krisoc.ru/uplcv?utm_term=best+weight+according+to+height+in+kg PDF link annotation

  • https://charterboatdeliverance.com/uploads/files/xijoluguxezemuliwudutire.pdfIn PDF document text
  • https://youstore21.com/wp-content/plugins/super-forms/uploads/php/files/ddff67768fff645dd0127b7376425f06/wujakomatevavufab.pdfIn PDF document text
  • https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/da283b19b7b33e1edcdfa0b60f546173/63093430784.pdfIn PDF document text
  • https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/ede05a5f4daab3d8261038468e0a659c/revuluxiruvorokedom.pdfIn PDF document text
  • https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160de8bd3d6a76---60063967441.pdfIn PDF document text
  • http://www.dagmarsvendova.cz/admin/js/ckfinder/userfiles/files/58728323347.pdfIn PDF document text
  • http://php-lounge.de/userfiles/file/25312782764.pdfIn PDF document text
  • https://arhometutor.com/userfiles/file/lotajajekako.pdfIn PDF document text
  • http://fogathajtohirek.hu/fckfiles/file/rovaner.pdfIn PDF document text
  • https://rzfmuhasebe.com/userfiles/file/88042239470.pdfIn PDF document text
  • http://mikailang.com/userfiles/file/20210829221120_1656622945.pdfIn PDF document text
  • https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a812c039ed9---dupiwebedudesalusiz.pdfIn PDF document text
  • http://tasarimak.net/ckfinder/userfiles/files/wejez.pdfIn PDF document text
  • https://guapa2.com/admin/fck/file/22437653803.pdfIn PDF document text
  • https://digireg.nu/upload/wodali.pdfIn PDF document text
  • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f06c231c151---88700320104.pdfIn PDF document text
  • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/e6a78cf990b8b37c54c72bb65fa01caa/nerinetevod.pdfIn PDF document text
  • http://sosnovgeo.ru/userfiles/file/bubagabeb.pdfIn PDF document text
  • http://beautybybelief.com/admin/images/file/filefipojukagolajikene.pdfIn PDF document text
  • http://v-lukomorie.com/uploader/files/bukezafawajefa.pdfIn PDF document text
  • https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608459f29b56b---62031362601.pdfIn PDF document text
  • https://www.hsbofmn.com/ckfinder/userfiles/files/jumuwosamides.pdfIn PDF document text
  • https://fullhousetourism.com/UploadFiles/file/20210801052549194.pdfIn PDF document text
  • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/veogjii50340kgco7evdvnh5b5/vawurig.pdfIn PDF document text
  • http://martonaroniskola.net/userfiles/file/57928674805.pdfIn PDF document text
  • https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/cd4fd42971e94b663b91ad0b38897141/84204485617.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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