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=ppt+on+numerical+methods PDF link annotation

  • https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/f09267a357943815dcf03b924ad2a53f/lizemoradu.pdfIn PDF document text
  • http://cuiquji.net/d/files/11192702775.pdfIn PDF document text
  • https://lamaisonducoeur.ca/upload/editor/file/pubizejinit.pdfIn PDF document text
  • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/927b5da8579ed24c3181d729b6709969/bukobuxobekos.pdfIn PDF document text
  • https://earplighting.com/wp-content/plugins/super-forms/uploads/php/files/cd7cd2488218bc115c69d0fcd34c2b6b/rafavoredegumabukanosapu.pdfIn PDF document text
  • https://bawwabatrizq.com/userfiles/file/popekuxisosiwi.pdfIn PDF document text
  • http://darienhigh69.com/clients/866565/File/fubibukuno.pdfIn PDF document text
  • http://vkts.se/userfiles/file/86741717660.pdfIn PDF document text
  • http://www.molinoag.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7cb05d55b2---36243845280.pdfIn PDF document text
  • https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/0it7f35molh5m0v1hc3mu5nrn5/xonesorogopamo.pdfIn PDF document text
  • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085f11f9eb0f---31812173910.pdfIn PDF document text
  • http://thegioichuyendong.info/app/webroot/upload/files/parufop.pdfIn PDF document text
  • http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/160b74c47b8ee2---23934291406.pdfIn PDF document text
  • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2c5021fded---puxov.pdfIn PDF document text
  • http://kingsap.com/file_media/file_image/file/vibin.pdfIn PDF document text
  • https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/d9f14c9b65738c73d2b4924bc0a0f489/vodomoru.pdfIn PDF document text
  • https://pypconsultores.mx/userfiles/file/faxonisigofadogojozaj.pdfIn PDF document text
  • https://familienbilstrup.dk/ckfinder/userfiles/files/89019159239.pdfIn PDF document text
  • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160dbe91fd52c7---fisobawoxilaresifok.pdfIn PDF document text
  • http://panda-es.tokyo/yamituki-n/uploads/files/xogilojujowamemezinijuzu.pdfIn PDF document text
  • http://www.klimavill.com//data/editorfile/47325272092.pdfIn PDF document text
  • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/019515139ac5b6c537c9f41db8c90d64/ruteluwutefakekud.pdfIn PDF document text
  • http://risme.vn/files/zofasemigusutepumuta.pdfIn PDF document text
  • http://jeansresource.com/js/ckfinder/userfiles/files/meromebedojowusenomava.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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