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 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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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.
• 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://yubit.co.za/XSRYdR1H?utm_term=customizable+excel+calendar+template PDF link annotation

  • http://tw-sincere.com/upfiles/editor/files/43575913918.pdfIn PDF document text
  • http://robvancampen.nl/userfiles/file/40262329663.pdfIn PDF document text
  • http://goldendoodlesofthesierranevadas.com/userfiles/file/96415016591.pdfIn PDF document text
  • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/339623af1499210f69a8f29fb8e18731/26833111025.pdfIn PDF document text
  • https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e238731df9a---67294509587.pdfIn PDF document text
  • http://www.sandipmallick.com/fckimages/file/79502831482.pdfIn PDF document text
  • http://kapsalonvogue.nl/files/file/33452585444.pdfIn PDF document text
  • http://waxiangyuan.com/upload_fck/file/2021-10-18/20211018004556453330.pdfIn PDF document text
  • https://postelezmasivu-praha.cz/ckfinder/userfiles/files/72401777811.pdfIn PDF document text
  • http://cosmik-kino.ru/sadm_files/pakopomowedagovenuk.pdfIn PDF document text
  • https://www.nickelmarket.co.za/includes/ckfinder/userfiles/files/46508000095.pdfIn PDF document text
  • http://svenskafik.se/uploads/fckeditor/file/36674501112.pdfIn PDF document text
  • https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/c8837ca38a521ef1abf361a92c6222a5/48841770637.pdfIn PDF document text
  • http://eventechsite.com/files/files/babizijetukururar.pdfIn PDF document text
  • http://bukitjaya88.com/kcfinder/upload/files/fixujezifezuvoxe.pdfIn PDF document text
  • http://dietetyka-24.pl/images/files/22429996846.pdfIn PDF document text
  • https://unifor975.ca/userfiles/file/85391771780.pdfIn PDF document text
  • http://ipsc-pv.cz/kcfinder/upload/files/pewugokezixalukusikuvida.pdfIn PDF document text
  • http://thesciencenetwork.org/uploads/files/67527620142.pdfIn PDF document text
  • http://www.injamal.es/nueva/ckfinder/userfiles/files/66617934004.pdfIn PDF document text
  • http://m-s-g.ru/userfiles/files/16224676415.pdfIn PDF document text
  • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/161904e305a8c0---demom.pdfIn PDF document text
  • https://lexconsulting.ro/webroot/files/media/muzilapevezixosiwovewa.pdfIn PDF document text
  • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/6d1b7448adccf2db33cb9528df4f373f/sivobigabazupijonibaze.pdfIn PDF document text
  • https://kotata-zlin.cz/obr/clanky/file/sisokisojaja.pdfIn PDF document text
  • http://trieuduong.com/images/Download/95022853282.pdfIn PDF document text
  • http://www.tamtrebinhminh.com/public/files/48836963740.pdfIn PDF document text
  • http://mega-treid.com/userfiles/files/buneg.pdfIn PDF document text
  • https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/49f659f881dec766b11fbeae71ba7e5d/fivikuvexe.pdfIn PDF document text
  • http://studiotipaldo.com/userfiles/files/4936847498.pdfIn PDF document text
  • https://ruxthai.com/ckfinder/userfiles/files/59845533935.pdfIn PDF document text
  • http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a4e275e1771---20495871920.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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