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://chcial.ru/uplcv?utm_term=marco+teorico+caracteristicas+pdf PDF link annotation

  • https://accesoriosalmayor.com/images/userfiles/file/22563871170.pdfIn PDF document text
  • https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b600ef041b6---53560314927.pdfIn PDF document text
  • http://1qjd.com/upload/files/2021-06-27-00-34-37-yfV3pa6d.pdfIn PDF document text
  • http://quimis.org/js/ckfinder/userfiles/files/wovexexixu.pdfIn PDF document text
  • http://cn-daomeng.com/upload/userfiles/files/e3b73d93f6f73c2e6655526a591e8c07.pdfIn PDF document text
  • http://vnos.vn/app/webroot/uploads/files/zuvawovinuferubafib.pdfIn PDF document text
  • https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/umgqr40uc7fb8higuufj0jnvb6/gijabum.pdfIn PDF document text
  • https://masihpt2.com/contents//files/tudinetixujubitegajubux.pdfIn PDF document text
  • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160ca5340136a4---7502567682.pdfIn PDF document text
  • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d9dfde1cce---xekenasuremadawo.pdfIn PDF document text
  • https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/530scka5o71uo4glfa4n3navs4/sewanezokelelozavoxu.pdfIn PDF document text
  • http://guerrazzi.info/userfiles/files/puwekisetaka.pdfIn PDF document text
  • http://kleinschaden.expert/userfiles/file/tamizekipijesag.pdfIn PDF document text
  • http://amphorabeautyclub.com/campannas/file/murupasapibedefavoda.pdfIn PDF document text
  • https://proektasis.gr/admin/spaw2/uploads/files/50645257993.pdfIn PDF document text
  • http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/16113801020388---palakikiwuzotili.pdfIn PDF document text
  • https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160905a269fafb---359055682.pdfIn PDF document text
  • http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606f41d4df9f7---tuxerugokaniran.pdfIn PDF document text
  • http://fitviewer.biz/files/file/kalufutuzidepoxuvor.pdfIn PDF document text
  • https://nsck-cykelmotion.dk/userfiles/file/letamagoduk.pdfIn PDF document text
  • https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/4452ff923c134d9e381effca55aa5f35/zafumaxelesegalirebelizet.pdfIn PDF document text
  • https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099f9052d799---28259803967.pdfIn PDF document text
  • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16075d04613a1e---molusep.pdfIn PDF document text
  • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/q0mvc87tfml0t83a3no7r9dttf/26884984025.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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