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 http://gshosnab.ru/userfiles/file/kepamezijen.pdf In PDF document text

  • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1614230e91a578---23311895243.pdfIn PDF document text
  • https://aeternoplanning.com/ckfinder/userfiles/files/29896186633.pdfIn PDF document text
  • http://fivelscope.net/fckimages/pomirux.pdfIn PDF document text
  • https://dunakanyarfesto.hu/ckfinder/userfiles/files/92901808423.pdfIn PDF document text
  • http://www.zywawiara.pl/pliki/74533874803.pdfIn PDF document text
  • http://modernplating.com/userfiles/file/34839318419.pdfIn PDF document text
  • https://sua.vn/uploads/userfiles/file/15581015804.pdfIn PDF document text
  • https://popa.com.br/wp-content/plugins/super-forms/uploads/php/files/8232a0952321dba7fb0ae1d905ff41e3/69963304097.pdfIn PDF document text
  • http://chandravanshi.com/userfiles/file/fason.pdfIn PDF document text
  • http://www.dialog-seversk.ru/jsplugins/ckfinder/userfiles/files/sumoduzujukiwaxapi.pdfIn PDF document text
  • http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1613a9e0ca4614---4484650516.pdfIn PDF document text
  • http://conservativista.com/js/ckfinder/userfiles/files/18500080675.pdfIn PDF document text
  • http://moonlightmontessori.com/upload/files/pilogezinakikew.pdfIn PDF document text
  • http://lafenicealcamo.it/userfiles/files/zevemujepageboxenizetiru.pdfIn PDF document text
  • http://cokhixnktientien.com/Images_upload/files/16953969759.pdfIn PDF document text
  • http://chiengthai.com/file_media/file_image/file/33000525608.pdfIn PDF document text
  • http://belniig.by/public/file/memunuwewojepivizizu.pdfIn PDF document text
  • http://vinhthuan.com/upload/files/jenelejodulezeki.pdfIn PDF document text
  • http://zatexpress.com/upload/userfiles/files/zubuziwuxerovukisezebu.pdfIn PDF document text
  • https://hkfew.org.hk/ckfinder/userfiles/files/kujepakitozemoman.pdfIn PDF document text
  • http://chinalabware.net/d/files/livoseberilalinimoz.pdfIn PDF document text
  • http://www.waetsukai.jp/system/ckfinder/userfiles/files/tuvagefimuf.pdfIn PDF document text
  • https://livnica-metalurg.com/images/pages/file/20387806015.pdfIn PDF document text
  • https://desco.scp.hr/files/zonora.pdfIn PDF document text
  • https://www.ebenisterie-burette.com/ckfinder/userfiles/files/fixifenikiretemif.pdfIn PDF document text
  • http://gasasosong.com/upload/fckeditor/file/sowiza.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=smart+youtube+tv+apk+free+downloadPDF link annotation
  • 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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