Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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://laborke.ru/uplcv?utm_term=printable+character+sheet+5e PDF link annotation

  • http://www.chiringuitomediterraneo.com/ckfinder/userfiles/files/92892476632.pdfIn PDF document text
  • https://abofahed.com/userfiles/file/dezevegoga.pdfIn PDF document text
  • https://www.supremecaravans.com.au/application/third_party/ckfinder/userfiles/files/12929729886.pdfIn PDF document text
  • http://markasib.ru/ckfinder/userfiles/files/leloveweb.pdfIn PDF document text
  • http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161386d1a33820---kidizowezukijagifonivixe.pdfIn PDF document text
  • https://abofahed.com/userfiles/file/bazelepunamovekesun.pdfIn PDF document text
  • https://syntellect.ru/Repository/file/kulesa.pdfIn PDF document text
  • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613e4dd04f166---befulobopik.pdfIn PDF document text
  • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/b0dfe11c463a2847aaed39f0a138d8fe/voxolebavarezijewusabi.pdfIn PDF document text
  • https://tedvandergulik.nl/userimages/file/75916893262.pdfIn PDF document text
  • https://alteanetworks.fr/img/file/29268646901.pdfIn PDF document text
  • http://paneldeconsos.com/userfiles/file/53336691552.pdfIn PDF document text
  • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/cuiqt4i7t4tt9nstef5ovdpm17/26317308372.pdfIn PDF document text
  • http://puisan.ru/uploads/file/29831178413.pdfIn PDF document text
  • http://pereplanirovkaoblast.ru/pict/file/68691602903.pdfIn PDF document text
  • https://i-chat.tw/js/ckfinder/userfiles/files/zimominuloliruwos.pdfIn PDF document text
  • https://happycolaborativo.com/uploads/files/88539449087.pdfIn PDF document text
  • https://affordans.com/ckfinder/userfiles/files/jolaxekedose.pdfIn PDF document text
  • http://balletpanov.com/uploads/files/22021935312.pdfIn PDF document text
  • https://houstoncoinclub.org/FCKeditor/file/69056127989.pdfIn PDF document text
  • https://plasy.com/uploads/file/fabizulafoburepo.pdfIn PDF document text
  • http://webinaris.org/ckfinder/userfiles/publics/files/zenatenofevuzi.pdfIn PDF document text
  • http://xinchenfast.com/upload/file/pivalidokisulopijonu.pdfIn PDF document text
  • https://ngenadmin2.nextgenphotosolutions-beta.com/app/webroot/files/file/76750581543.pdfIn PDF document text
  • https://albizy.com/ckfinder/userfiles/files/voxajasemezug.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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