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://medvor.ru/uplcv?utm_term=math+worksheets+for+middle+school+free PDF link annotation

  • https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/1424b9705bb01ac9c2aa95fb5c9b0310/suxojepubunel.pdfIn PDF document text
  • https://lavaecucebrescia.it/file/fofof.pdfIn PDF document text
  • https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/6452c0ee075d9bb6ada3b24987d29a54/16790712475.pdfIn PDF document text
  • https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/81df44f2c8b86c5e925a7da7dcc33075/12402361028.pdfIn PDF document text
  • http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac34823908e---lavibugefazu.pdfIn PDF document text
  • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/16111331cd67f4---kexiwoxiwas.pdfIn PDF document text
  • https://canionglobal.com/FCKeditor/file/56536485443.pdfIn PDF document text
  • http://kirakuramen.com/uploads/files/79507710613.pdfIn PDF document text
  • http://ordineveterinarivenezia.eu/userfiles/files/14855546891.pdfIn PDF document text
  • https://www.vedaaz.com/wp-content/plugins/super-forms/uploads/php/files/mdo0o9p6q17s3ammiu3rbgaqg6/1753441182.pdfIn PDF document text
  • https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/17djsecos8mpt5arcfo4imtnr6/bafelapos.pdfIn PDF document text
  • http://nbcmedia.vn/ckfinder/userfiles/files/sibokirazijifu.pdfIn PDF document text
  • http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160e613b1d8ec2---fafupemapukilisavaxopo.pdfIn PDF document text
  • http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/160b1f87ac31fe---piwaporibevitevules.pdfIn PDF document text
  • http://hysansam.com/fckeditor/userfiles/image/19229335159.pdfIn PDF document text
  • http://xn--80aaffebba2apgigwiiececnggk9e4k.xn--p1ai/pict/file/kojizavilepaminabaxore.pdfIn PDF document text
  • https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/0ec429eb6abdb377a62fddfb9c554a0e/7973917618.pdfIn PDF document text
  • https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/36f7d8c8915b8db67a52e38368bd98ad/nobamixizukewowadijenu.pdfIn PDF document text
  • http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/bugosuse.pdfIn PDF document text
  • https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb9a4da3567---9101609755.pdfIn PDF document text
  • http://ridgefieldpark1967.com/clients/3/39/39eebdc8797e30ee23d4fd57d071fd44/File/25686635592.pdfIn PDF document text
  • http://vom-ragnaroek.de/uploads/file/87114003660.pdfIn PDF document text
  • http://akcjonariusz.com/UserFiles/file/lifido.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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