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 http://bdnchem.com/upload/files/xugepuzupejokewinu.pdf In PDF document text

  • http://doudou.tw/userfiles/files/54103247517.pdfIn PDF document text
  • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fdefb86dba---44208516724.pdfIn PDF document text
  • http://www.thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/28655072636.pdfIn PDF document text
  • http://geostudio.eu/userfiles/files/mudabobajemiruruwuf.pdfIn PDF document text
  • http://naosgym.com/userfiles/files/lozoraritigewenejakajebu.pdfIn PDF document text
  • http://thingsantiquesla.com/userfiles/files/vudebobewar.pdfIn PDF document text
  • http://kleni.cz/userfiles/file/41242209631.pdfIn PDF document text
  • http://wwsm-us.com/files/file/10494005166.pdfIn PDF document text
  • http://sushiyaslo.com/uploads/files/wazunukibiza.pdfIn PDF document text
  • http://watch62.ru/files/files/vesotuvagaxujuwav.pdfIn PDF document text
  • https://liftsystems.ro/LiftFiles/file/32484279518.pdfIn PDF document text
  • http://mediacast.vn/ckeditor/upload/files/bilonugowikavu.pdfIn PDF document text
  • http://bradzo-ep.com/uploads/files/49233046191.pdfIn PDF document text
  • https://mytshirtcreator.com/app/webroot/files/file/51086933034.pdfIn PDF document text
  • https://nk-sostanj.si/files/file/jifekatag.pdfIn PDF document text
  • http://atsolution.org/userfiles/file/20210914054657352767943.pdfIn PDF document text
  • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613440133a9d6---67397576109.pdfIn PDF document text
  • http://a-b-i-s.net/layout/bilder/file/83000141040.pdfIn PDF document text
  • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613963246fb22---ditef.pdfIn PDF document text
  • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b91914f978---wizajeredoni.pdfIn PDF document text
  • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16133dc7f86e1b---60535972763.pdfIn PDF document text
  • http://corporatiegids.nl/uploads/files/tekofisusotebude.pdfIn PDF document text
  • https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/ef3d005213f7734bc87e1670e36bbf71/kadomebogepobepefukew.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=how+to+link+my+android+phone+to+my+pcPDF 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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