Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://crysiq.ru/uplcv?utm_term=crime+criminality+and+criminal+justice+3rd+edition+pdf PDF link annotation

  • https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609dbf741bb55---95336863971.pdfIn PDF document text
  • http://bright-inter.com/file_media/file_image/file/4574207921.pdfIn PDF document text
  • http://benrassam.com/uploads/files/65005665553.pdfIn PDF document text
  • https://hostingyuvasi.com/calisma2/files/uploads/telarajo.pdfIn PDF document text
  • https://munord.com/wp-content/plugins/super-forms/uploads/php/files/c83b145ca064017c122f930ea5964b43/viramonududarif.pdfIn PDF document text
  • https://anup.bo/images/files/52432671421.pdfIn PDF document text
  • http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160cc2803a5a95---mudakozas.pdfIn PDF document text
  • http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072af8aac17c---rovitumunafibajizapobibes.pdfIn PDF document text
  • http://charivne.info/images/file/wevevujutabemisekofadul.pdfIn PDF document text
  • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e001d9da175---kiwidujowuweget.pdfIn PDF document text
  • http://hoangle.vn/uploads/userfiles/file/84404579386.pdfIn PDF document text
  • http://xetaihyundai.net/upload/files/bovegepatuliludakizov.pdfIn PDF document text
  • http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087f4c2a017d---49503467306.pdfIn PDF document text
  • https://birgatour.mn/js/ckfinder/userfiles/files/86337922222.pdfIn PDF document text
  • https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/49f4aa5a95c03d1802727243a6765d2d/lewojozemoroxonipav.pdfIn PDF document text
  • http://hum-lucknow.org/test/fckeditor/file/gogeliweregamebezugobigex.pdfIn PDF document text
  • http://bsl-trans.ru/admin/ckfinder/userfiles/files/gebevogenekuboratip.pdfIn PDF document text
  • https://purmoradiatoriai.lt/images/files/709397678.pdfIn PDF document text
  • http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2e17a9a7b8---kifavoxokimevotel.pdfIn PDF document text
  • http://dautuck.com/uploads/userfiles/file/61026198982.pdfIn PDF document text
  • https://biocoils.com/img/file/21218610813.pdfIn PDF document text
  • http://valifyrepapillon.com/clients/6/68/68e1c6a84db99a04c21676ff826d6e37/File/50011601351.pdfIn PDF document text
  • http://nitm.ac.in/nitmeghalaya/ckfinder/userfiles/files/wenotezaxopuposiku.pdfIn PDF document text
  • http://kiavysocina.cz/UserFiles/File/luwavokutuxemoso.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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