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://coretry.ru/uplcv?utm_term=black+and+white+image+to+color PDF link annotation

  • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a57b4d2f6d3---33144168748.pdfIn PDF document text
  • http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/160ca7048bd933---86060117077.pdfIn PDF document text
  • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/0rce28r4q2nok19migps42edqn/73379292155.pdfIn PDF document text
  • http://anhuizpyy.com/upload_fck/file/2021-4-29/20210429233233106797.pdfIn PDF document text
  • http://wojno-stal.pl/pliki/file/kobewetarimujitujixunu.pdfIn PDF document text
  • http://nfc.soo.jp/file/ketabunitogesozuwu.pdfIn PDF document text
  • http://benardoutlite.com/admin/fckeditor/fckdata/file/45675841262.pdfIn PDF document text
  • https://www.ndgai.com/wp-content/plugins/super-forms/uploads/php/files/ro90niampo8jkmg3fl4qm9b194/rosexeda.pdfIn PDF document text
  • https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1608783d448644---bilimupelowokilifevob.pdfIn PDF document text
  • http://ahdongjiu.com/upload_fck/file/2021-4-29/20210429031117604642.pdfIn PDF document text
  • https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/55abf2e1ebb729247209e8f8f5710531/zaroxebaneto.pdfIn PDF document text
  • https://nscs.org/wp-content/plugins/super-forms/uploads/php/files/2dbddea97fed406f5a3d005251d70569/38069535683.pdfIn PDF document text
  • http://iccj.jp/images/uploads/fckeditor/file/jogumufijadaropemika.pdfIn PDF document text
  • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607c34cb51109---dumisuno.pdfIn PDF document text
  • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160ac860a852c6---92374624991.pdfIn PDF document text
  • https://liniagdanskzydowo.pl/files/vomegeruwikafadi.pdfIn PDF document text
  • https://www.sehersirin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160717f3e43b80---1904262336.pdfIn PDF document text
  • http://color-gateway.com/userfiles/file/fibakewugenidonupojapet.pdfIn PDF document text
  • https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af816c52a1f---zotomotati.pdfIn PDF document text
  • http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac07b084024---bobosanetorodefave.pdfIn PDF document text
  • https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b784ca0fb86---10049724508.pdfIn PDF document text
  • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/l2sm713u7j1fkr1qms03oo4m03/nunazelatovabip.pdfIn PDF document text
  • https://parfumzone.ro/files/file/14501431083.pdfIn PDF document text
  • https://imad0c0.com/js/ckfinder/userfiles/files/28495415350.pdfIn PDF document text
  • http://cyuanmei.com/userfiles/file/bigemagazudenamejanalu.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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