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://crysiq.ru/uplcv?utm_term=how+to+record+something+playing+on+your+phone PDF link annotation

  • http://historico.uts.edu.co/portal/app/ckfinder/userfiles/files/pisubawuma.pdfIn PDF document text
  • https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/a32585dd7e23ba2926be5879e94e5a6b/69943484399.pdfIn PDF document text
  • https://ghnservizi.com/file/61870877284.pdfIn PDF document text
  • http://stacjaregeneracja.pl/userfiles/file/39523363722.pdfIn PDF document text
  • http://ryouhurt.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/33415667902.pdfIn PDF document text
  • http://aloisiquadri.it/userfiles/files/49718374929.pdfIn PDF document text
  • http://praguetransfer.com/files/file/10188696192.pdfIn PDF document text
  • http://tuvanluatdanang.com/upload/ck/files/vagozawit.pdfIn PDF document text
  • http://xecuoihuyhoang.com/uploads/userfiles/file/molezezujinupaburomi.pdfIn PDF document text
  • http://studionegro.net/userfiles/files/47468372118.pdfIn PDF document text
  • https://vanchuyen.pvl-soft.com/site/files/14208615852.pdfIn PDF document text
  • https://rubfila.in/files/file/xokoduzi.pdfIn PDF document text
  • http://anabakorea.jp/userfiles/file/19500773974.pdfIn PDF document text
  • https://varida-tech.com/ckfinder/userfiles/files/wotegutolo.pdfIn PDF document text
  • https://hoakhanh.vn/uploads/image/files/nutinirasimewoso.pdfIn PDF document text
  • https://gyn-koe70.de/obrazky/file/xijovegatusekolupixu.pdfIn PDF document text
  • http://topoint.net/userfiles/fckFile/20210912090332.pdfIn PDF document text
  • http://xz-brand.com/ckfinder/userfiles/files/zufolebegifuveb.pdfIn PDF document text
  • http://leadingedgecorporate.com/user_images/file/rezojomi.pdfIn PDF document text
  • http://themadthinker.com/temp/vinney/HTML/userfiles/file/pesetinagivodelikonu.pdfIn PDF document text
  • https://aildf.in/userfiles/file/tawerunufodojodag.pdfIn PDF document text
  • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/161469434cd1d8---34329096468.pdfIn PDF document text
  • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/af9683c9f55da017f76e27a528ccfae2/koseju.pdfIn PDF document text
  • http://hart-metale.pl/gimnazjum/userfiles/file/70495009972.pdfIn PDF document text
  • http://eldmsh1.ru/js/ckfinder/userfiles/files/dexigo.pdfIn PDF document text
  • http://www.first-classlogistics.com/image/upload/File/tabufikide.pdfIn PDF document text
  • http://suachuaspa.com/upload/images-content/files/42376817991.pdfIn PDF document text
  • https://www.assessment.unibe.ch/app/webroot/js/ckfinder/userfiles/files/64937796304.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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