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://laborke.ru/uplcv?utm_term=images+of+cells+in+human+body PDF link annotation

  • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/qbd0gjvt4rpghc9p8riotdn2nr/tiful.pdfIn PDF document text
  • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606feaa131587---46470903954.pdfIn PDF document text
  • https://www.schroedersales.com/wp-content/plugins/super-forms/uploads/php/files/c2ca25abf7638738cf02125bbb154f46/gibejugu.pdfIn PDF document text
  • http://webdulich.com/js/ckfinder/userfiles/files/57208537431.pdfIn PDF document text
  • http://infinity-pro.ru/userfiles/file/898277189.pdfIn PDF document text
  • https://taxforce.nl/userfiles/files/79479930695.pdfIn PDF document text
  • https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b039f4b45db---fotimurasufujuxijit.pdfIn PDF document text
  • http://yuanhebiotech.com/upload/files/vubavakevikesusofokojif.pdfIn PDF document text
  • https://www.ideaklinik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c13bd0b378---lovinilubobexoru.pdfIn PDF document text
  • https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/0d1827211d1a2cd2dc47fe72490e9551/32008117809.pdfIn PDF document text
  • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/0cd7229cf2dfdaf603a2d0a8bee7983d/12380644540.pdfIn PDF document text
  • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/16096b8e81ca93---52361072503.pdfIn PDF document text
  • http://sevennews.com.br/ckfinder/userfiles/files/52323694206.pdfIn PDF document text
  • http://lucchetta.net/userfiles/files/busasu.pdfIn PDF document text
  • http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca2a9c46d5---94305422585.pdfIn PDF document text
  • https://kaptenhoki.info/contents//files/kakalebujurebagekonobik.pdfIn PDF document text
  • http://sun-marche.com/app/webroot/js/ckfinder/userfiles/files/47639575962.pdfIn PDF document text
  • https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160795916453f0---jibifugerafe.pdfIn PDF document text
  • http://smirna.pl/files/file/mabesivubamivetowozunodo.pdfIn PDF document text
  • http://www.verneteco.com/ckfinder/userfiles/files/52784185695.pdfIn PDF document text
  • http://adamlegal.com/userfiles/file/61835964777.pdfIn PDF document text
  • https://victorybear-info.com/userfiles/files/95292878808.pdfIn PDF document text
  • http://dailygiasi.com/uploads/userfiles/file/69251311607.pdfIn PDF document text
  • https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/urj8lvmrc96okdgb309ifq31ba/59089253827.pdfIn PDF document text
  • https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/1aea2e527b4d73a26290cf39f7d09438/73715590861.pdfIn PDF document text
  • http://iccjsc.com/images/uploads/files/wavexiz.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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