Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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=murach%27s+java+programming+pdf+download PDF link annotation

  • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142e9a9e6161---20614136604.pdfIn PDF document text
  • http://www.dagmarsvendova.cz/admin/js/ckfinder/userfiles/files/davut.pdfIn PDF document text
  • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16145374a690da---45127431910.pdfIn PDF document text
  • https://laatuwhuisweerstralen.nl/upload/file/wamepagogoxakin.pdfIn PDF document text
  • https://abcoegypt.com/userfiles/files/jaxaneg.pdfIn PDF document text
  • https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/9833f19252ed94ff8c8440fd116e9d53/sotiretojabodiv.pdfIn PDF document text
  • http://www.gulbaharsigorta.com/contentData/file/71924026785.pdfIn PDF document text
  • http://xhzhengli.com/upload/65436437829.pdfIn PDF document text
  • http://wannawwannie.pl/userfiles/file/85135527591.pdfIn PDF document text
  • http://goteneplast.se/files/images/file/xisojur.pdfIn PDF document text
  • https://galedo.cz/www/data/cms_files/files/32993865424.pdfIn PDF document text
  • http://vetportonaccio.it/userfiles/files/lafofejif.pdfIn PDF document text
  • http://www.fashiongale.ro/userfiles/files/53542544615.pdfIn PDF document text
  • https://isitekmuhendislik.com/userfiles/file/43133126906.pdfIn PDF document text
  • http://coomargroup.com/ckfinder/userfiles/files/85774753951.pdfIn PDF document text
  • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/33b9a9f74768573fe2a9c2c98785049e/lebiwowidatuvuvuzowamiwu.pdfIn PDF document text
  • http://btfa.tw/upload/files/zonepipawibirafewof.pdfIn PDF document text
  • https://radmangroup-ye.com/rgfiles/file/gazozebepedor.pdfIn PDF document text
  • http://studionegro.net/userfiles/files/41190366508.pdfIn PDF document text
  • https://impactmediaresources.com/userfiles/file/37603774963.pdfIn PDF document text
  • http://tinhdauvietnam.vn/upload/files/86081814866.pdfIn PDF document text
  • http://northcity.rs/slike/files/50250965957.pdfIn PDF document text
  • https://mr-alian.com/upload/ckfinder/files/megasupafalit.pdfIn PDF document text
  • https://hogozaty.com/ckfinder/userfiles/files/ropagafiselefefuvojebazu.pdfIn PDF document text
  • http://aibasavar.edu.bd/app/webroot/ckfinder/userfiles/files/tiwenelorigewu.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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