Malicious PDF — malware analysis report

Heuristics 8

• 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://ever0036.com/assets/uploads/ckedit/files/20210922201538.pdf In PDF document text

  • https://7foro.exceltur.org/exceltur_nuevo/ckfinder/userfiles/files/ruratika.pdfIn PDF document text
  • http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16146c6e723440---34847163888.pdfIn PDF document text
  • http://stolizstekla.ru/userfiles/file/77415049836.pdfIn PDF document text
  • https://rijst.nu/userfiles/file/sapulawan.pdfIn PDF document text
  • http://vngo-cc.vn/cooker/public/files/welekemob.pdfIn PDF document text
  • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613713997db9e---kepebuvigutevonijabe.pdfIn PDF document text
  • http://lica.plovdivweek.com/js/ckfinder/userfiles/files/vowedutonowigaximevi.pdfIn PDF document text
  • http://elcampoeco.org/FCKeditor/file/25081916727.pdfIn PDF document text
  • https://myclubowners.travelenvogue.com/userfiles/files/62853542251.pdfIn PDF document text
  • https://shoppingplanet.ro/ckfinder/userfiles/files/serepiforudimelakadibo.pdfIn PDF document text
  • http://www.logistiekverbeteren.nl/ckfinder/userfiles/files/botuzexusuxidoxatuwejod.pdfIn PDF document text
  • https://newchat.xyz/js/ckfinder/userfiles/files/6907184603.pdfIn PDF document text
  • http://mtjjt.com/2013/upload/article/files/210907203853451683ehnlt.pdfIn PDF document text
  • http://iberia-ex.com/images/blog/file/rusivevawoxejukiwerenogo.pdfIn PDF document text
  • http://lamardaegu.com/upfile/user/file/34012322756.pdfIn PDF document text
  • http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/16148d200d500a---84802430942.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/fotorelubixuwunotukimon.pdfIn PDF document text
  • https://quangcaowebsite.xemlaco.com/uploads/files/wodopudilaxawuxes.pdfIn PDF document text
  • https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/fd1f9e54e6b30901049b0017529e7295/fumakakopozemudumajonof.pdfIn PDF document text
  • http://m-styleauto.com/js/upload/files/gaxatufumodoxi.pdfIn PDF document text
  • https://vinasimex.com/uploads/file/35846716439.pdfIn PDF document text
  • http://huntland.hu/upload/file/vivodetufuvo.pdfIn PDF document text
  • https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133d455a8f86---40376207711.pdfIn PDF document text
  • http://naturalwonders.com/uploads/files/39430701261.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=check+cpu+wattagePDF 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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