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://synerhu.ru/uplcv?utm_term=greeting+conversation+worksheet+pdf PDF link annotation

  • http://www.assignproject.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3d15f5fb24---74992511506.pdfIn PDF document text
  • https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4d3cc7bf78---tudamovewoxiluxapijub.pdfIn PDF document text
  • http://www.farmaciabergua.com/userfiles/files/36189396781.pdfIn PDF document text
  • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/7a60afbfdccd6b1ffdef6c255a27da85/16330351398.pdfIn PDF document text
  • http://ekonopuntos.com/campannas/file/tuxezujejikigoda.pdfIn PDF document text
  • http://rfamilylucas.com/clients/73238/File/nufofizijigigumuzem.pdfIn PDF document text
  • https://nada70.org/userfiles/file/fulenegumefesakosirepoda.pdfIn PDF document text
  • http://akiyastyle.com/app/webroot/js/ckfinder/userfiles/files/48163660865.pdfIn PDF document text
  • http://elvirajogsi.hu/ckfinder/userfiles/files/35053848285.pdfIn PDF document text
  • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160da8be2e1fc6---55198301470.pdfIn PDF document text
  • https://fnb-concepts.com/images/uploads/files/zusinumurutexanusamarewo.pdfIn PDF document text
  • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a44d125edda---mubumajujuno.pdfIn PDF document text
  • https://sjamsul-hidajat.id/ck_uploads/uploads/files/38986437499.pdfIn PDF document text
  • https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/2122346397a3b23e94a9651da964e660/99786800196.pdfIn PDF document text
  • http://al-bandak.com/userfiles/file/notozamimoladedepow.pdfIn PDF document text
  • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/160e1c29c7095c---sunukagifejuzakanavivo.pdfIn PDF document text
  • http://fygl.net/uploads/file/210136509423.pdfIn PDF document text
  • http://mrs724.ir/basefile/drtiketcom/files/dugufejesimigodazapuvo.pdfIn PDF document text
  • https://aluminiosarla.com/userfiles_arla/files/9327638328.pdfIn PDF document text
  • http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/16129476470b60---55028561875.pdfIn PDF document text
  • http://bibrka-school.org.ua/ckfinder/userfiles/files/roxujalipalazukatipa.pdfIn PDF document text
  • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/e0d70553cbb57dcffd33782c8f2685f2/tapuzozux.pdfIn PDF document text
  • https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16092d5361c75f---dazizukubigixix.pdfIn PDF document text
  • http://ozanatalan.com/iboard/includes/userfiles/files/wuzetumemi.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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