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://synerhu.ru/uplcv?utm_term=free+skin+packs+minecraft+ps4 PDF link annotation

  • http://zavalinka.by/var/upload/file/76337082990.pdfIn PDF document text
  • http://bolt.fo/public_html/userfiles/files/4968877657.pdfIn PDF document text
  • http://c-amc.com/upload/files/16351236539.pdfIn PDF document text
  • http://votava2.altrodesign.eu/ckfinder/userfiles/files/kozidikesawa.pdfIn PDF document text
  • http://microsolder.hu/userfiles/files/wonumazugikomiveji.pdfIn PDF document text
  • https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/i1pm3ai7s72imspc0tmnkk4fj6/67402054659.pdfIn PDF document text
  • https://imagebrandstudio.com/userfiles/file/9862906493.pdfIn PDF document text
  • http://alatasfilms.gr/ILC/img/file/leluzevafa.pdfIn PDF document text
  • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/epikt2omal92g264hktb5arvg5/zamapudase.pdfIn PDF document text
  • http://kasintorn.com/images/upload/files/15196085349.pdfIn PDF document text
  • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/48611f91958214c4c638c80b339dd4fa/pegakiniwoditi.pdfIn PDF document text
  • http://ekbdrive.ru/ckfinder/userfiles/files/xugoxazukevunas.pdfIn PDF document text
  • http://tpdw.pl/userfiles/file/31939348244.pdfIn PDF document text
  • http://hamkr.com/userData/board/file/musuzegotaba.pdfIn PDF document text
  • https://bold-iot.com/uploads/files/202110092346348862.pdfIn PDF document text
  • http://cathyourhair.nl/js/ckfinder/userfiles/files/mewujagejafikufexaxaw.pdfIn PDF document text
  • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/19193a22d9fcdae62e4b82e18c7518f0/vajazopizopafujegegetanix.pdfIn PDF document text
  • http://woykoff.hu/upload/file/26599783207.pdfIn PDF document text
  • https://costarica4d.com/contents/files/83994942039.pdfIn PDF document text
  • http://mlight.cz/archiv/file/23924797849.pdfIn PDF document text
  • http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/161311ea1a317f---74382923229.pdfIn PDF document text
  • http://brette-animation.com/userfiles/file/44880880841.pdfIn PDF document text
  • https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/ae0eb4da9c6d87570d0c3b33af10ac61/risawo.pdfIn PDF document text
  • http://www.firstpages.eu/app/webroot/files/userfiles/files/zaxabotinuzetufukupidevex.pdfIn PDF document text
  • http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/13a222cd016a5a4bfcc53bb301c679f2/54409397632.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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