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://archism.ru/uplcv?utm_term=streetball+association+mod+apk PDF link annotation

  • https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/f5eac061e55f63b36d038e9d60122af6/68104058222.pdfIn PDF document text
  • http://collegium-connect.nl/ckupload/files/notekofegutifaxof.pdfIn PDF document text
  • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3c1d3d0139---14377720322.pdfIn PDF document text
  • http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab98fdd6295---98753400896.pdfIn PDF document text
  • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/16071e3bbc4cfc---wafeji.pdfIn PDF document text
  • https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/3ca74e0c06a8f4c71720b7140973a334/9115831412.pdfIn PDF document text
  • http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/zodunalegivifarilujasi.pdfIn PDF document text
  • http://myshopgroup.com/userfiles/files/famabiwenivolixew.pdfIn PDF document text
  • http://sosnovgeo.ru/userfiles/file/15170220929.pdfIn PDF document text
  • http://omatsuri.kr/data/userfiles/files/14405838113.pdfIn PDF document text
  • https://jnfarley.com/wp-content/plugins/super-forms/uploads/php/files/3tq37bbqjsggu4o1nlilfkc824/dokirutofikupidemaginul.pdfIn PDF document text
  • https://www.medicalbi.com/ckfinder/userfiles/files/duloga.pdfIn PDF document text
  • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a209894923a---64381665296.pdfIn PDF document text
  • http://helder-effect.nl/userfiles/file/juvegomalufatasolujasoxir.pdfIn PDF document text
  • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c419ef3c350---39378492746.pdfIn PDF document text
  • https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a48aa316a6b---96988313620.pdfIn PDF document text
  • http://oryginalnedekoracje.pl/userfiles/file/wositawulagixi.pdfIn PDF document text
  • http://www.hgbehringer.de/img/files/files/4783396340.pdfIn PDF document text
  • http://old.bgk-meshkova.com/ckeditor/ckfinder/userfiles/files/lujudosefox.pdfIn PDF document text
  • http://www.saveurspoitoucharentes.com/admin/ckfinder/userfiles/files/javulenukaxonevux.pdfIn PDF document text
  • https://soudurelauziere.com/upload/editor/file/81626372726.pdfIn PDF document text
  • https://floridainvestment.cz/files/file/mulojogag.pdfIn PDF document text
  • http://ducthoaudio.com/upload/files/14672038116.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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