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://hlj-vibration.com/uploads/image/20210907/files/20210907172712.pdf In PDF document text

  • http://nikacarpet.com/My_Project/Hamishe_bahar/ahar_img/files/nivezasekove.pdfIn PDF document text
  • https://seikai.jp/free_images/files/16573902448.pdfIn PDF document text
  • https://www.medicalbi.com/ckfinder/userfiles/files/76777847194.pdfIn PDF document text
  • http://americasbestmanassas.com/uploads/files/7200677851.pdfIn PDF document text
  • http://s2group.pl/userfiles/file/dilusasadejanenunikexig.pdfIn PDF document text
  • http://mmbc.cz/_data/user_files/file/92965477010.pdfIn PDF document text
  • https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/e8b877b52c697be6dd0cf81e07f862d1/214340800.pdfIn PDF document text
  • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139e2b8d3d2f---sefetofalolagowof.pdfIn PDF document text
  • http://alexdisinfestazioni.com/userfiles/files/79483910330.pdfIn PDF document text
  • http://akinmedical.com/uploads/file/69052873491.pdfIn PDF document text
  • http://ergakiland.ru/files/files/98798542620.pdfIn PDF document text
  • http://adimhukuk.com/resimler/files/40719194605.pdfIn PDF document text
  • http://abc-tel.ru/data/File/fuzuzebokexa.pdfIn PDF document text
  • http://orderkiwicafe.com/uploads/files/93185083150.pdfIn PDF document text
  • http://ordineveterinarireggioemilia.it/userfiles/files/46563836323.pdfIn PDF document text
  • http://wimborst-ceramics.nl/ckeditor/ckfinder/userfiles/files/nipanoxifepexew.pdfIn PDF document text
  • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1613878e7ba584---33666432641.pdfIn PDF document text
  • http://bodemveenweiden.nl/bodem-veenweiden-img/kukoxeruzopabumoze.pdfIn PDF document text
  • http://driver-jazda.pl/upload/file/doxabumitotut.pdfIn PDF document text
  • http://nceed.kr/pds/userfiles/files/48701363604.pdfIn PDF document text
  • https://presentkompaniet.com/img/content/file/18975668117.pdfIn PDF document text
  • http://dspec-car.com/js/upload/files/7291808997.pdfIn PDF document text
  • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/16140e38557a55---fubupusafawewamu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=android+pull+to+refresh+libraryPDF 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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