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://medvor.ru/uplcv?utm_term=how+to+make+a+pdf+a+searchable+document PDF link annotation

  • https://duext.com/wp-content/plugins/super-forms/uploads/php/files/d312638160432502798747652ff8901c/31026579558.pdfIn PDF document text
  • http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606c83108eca4---pegato.pdfIn PDF document text
  • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160782e3ee5f6f---49594255890.pdfIn PDF document text
  • https://paklya.su/design/img/upload/file/46923729021.pdfIn PDF document text
  • https://meganimal.pt/site/upload/file/4773555410.pdfIn PDF document text
  • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160823d5b155ff---92428969776.pdfIn PDF document text
  • https://cor.org.ar/wp-content/plugins/super-forms/uploads/php/files/jhnle4ogcv00rju61k143mffm1/jamufagajawalatatijutova.pdfIn PDF document text
  • http://jfe.hk/userfiles/58685296919.pdfIn PDF document text
  • https://svrcontractors.com/wp-content/plugins/super-forms/uploads/php/files/307945e14fd5381942ad948e457b91e6/jaxuforane.pdfIn PDF document text
  • https://winston-woodward.com/wp-content/plugins/super-forms/uploads/php/files/a7da0977eddd501fa67708f7b5fa9173/zixagisipiwo.pdfIn PDF document text
  • https://soyana.de/js/ckfinder/userfiles/files/13741367797.pdfIn PDF document text
  • https://primewestelectrical.com/wp-content/plugins/super-forms/uploads/php/files/9c21d454cc300b4506f26b7038c31130/59249885423.pdfIn PDF document text
  • https://airflow-skateboards.com/upload/file/20355653017.pdfIn PDF document text
  • http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0e47d8c66---denamukilutonibutaxa.pdfIn PDF document text
  • http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/160b9d78c9a3a4---vejixowupeturulejaxasebip.pdfIn PDF document text
  • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160a5dbd3d1225---8813602302.pdfIn PDF document text
  • https://seataclightingalaska.com/wp-content/plugins/super-forms/uploads/php/files/94b847afa4cb4f00dc752c5635897b11/moxewerina.pdfIn PDF document text
  • https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b7d6cf0668f---71421096567.pdfIn PDF document text
  • http://amuseonline.com/absite/userfiles/file/paxuxawujed.pdfIn PDF document text
  • https://remoteworkerclub.com/wp-content/plugins/super-forms/uploads/php/files/395d1eabdc48a118f911ad42e160da06/wudirabof.pdfIn PDF document text
  • https://himalmanpower.com/ckfinder/userfiles/files/28751355058.pdfIn PDF document text
  • https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/4da0f9073303bc1b273a576dd6f716dc/29510968168.pdfIn PDF document text
  • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a47bc99393c---2233322627.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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