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://cructi.ru/uplcv?utm_term=circulatory+system+worksheet+pdf+grade+6 PDF link annotation

  • http://papaicountrylodge-longstay.com/user_img/files/xadagixivuwagowabi.pdfIn PDF document text
  • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ad46d888d9f---najolamolofumo.pdfIn PDF document text
  • https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/70ae368b7eeda92abfcfc952b164f527/jaravedubujimulo.pdfIn PDF document text
  • https://tvsporedi.si/vsebina/67080264281.pdfIn PDF document text
  • https://reitinguok.lt/userfiles/file/98448759177.pdfIn PDF document text
  • http://klpa.net/userData/board/file/rixafutesujobo.pdfIn PDF document text
  • https://bakotech.at/uploads/ckeditor/files/78225551483.pdfIn PDF document text
  • http://canevinclassof70.com/clients/6/6b/6b8b8ee0d314e59372afbcb75100d768/File/80630089407.pdfIn PDF document text
  • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d02691258f---supeviwifikolesusewazup.pdfIn PDF document text
  • http://aceonlinementors.com/userfiles/file/tekukatumapanejipike.pdfIn PDF document text
  • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075f41a3b38d---dibadowedisekeberakelebi.pdfIn PDF document text
  • http://www.doctor-carpet.com/wp-content/plugins/super-forms/uploads/php/files/mp06dkro8airaob5f38adpvbv1/41633887070.pdfIn PDF document text
  • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d42954bded7---8811597029.pdfIn PDF document text
  • http://bhk-aindling.de/userfiles/files/rebidabamavolutaredujixo.pdfIn PDF document text
  • https://barrier.exma.cl/ckfinder/userfiles/files/50843981672.pdfIn PDF document text
  • http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/16095dd0bdbd7e---13469801097.pdfIn PDF document text
  • https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/d1323d1df265463c687075222587fac6/1747476536.pdfIn PDF document text
  • http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/letedazenixo.pdfIn PDF document text
  • http://premiercontractinginc.com/files/file/jefumapibiburatavux.pdfIn PDF document text
  • https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/908a25b3fd0365f80c94a6caf9dac765/90563611080.pdfIn PDF document text
  • http://templeton.sk/userfiles/file/91100375568.pdfIn PDF document text
  • https://clinicamanila.com/ckfinder/userfiles/files/56176804028.pdfIn PDF document text
  • http://www.vegagastro.pl/upload/file/jizug.pdfIn PDF document text
  • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/ckv27k66r9pi79gnl1rf5p3ej3/xolimutevudepanefumosa.pdfIn PDF document text
  • https://grupo.iberia.com/js/ckfinder/userfiles/files/94018206763.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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