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
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 69 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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.
• 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://coretry.ru/uplcv?utm_term=xanthoproteic+test+for+proteins+pdf PDF link annotation

  • https://ckd-otto.com/contents//files/84363342035.pdfIn PDF document text
  • https://duongthuy.net/userfiles/file/dabezukipivekajigetel.pdfIn PDF document text
  • https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2a8177741d---gilezepotimemasoxezomub.pdfIn PDF document text
  • http://ajarnveerapong.com/UserFiles/file/16517379270.pdfIn PDF document text
  • https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/448888c6810d1b69f5e64f468ccde5fc/fudox.pdfIn PDF document text
  • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d6995506b4---97938470868.pdfIn PDF document text
  • https://apsco.ly/userfiles/files/56928468865.pdfIn PDF document text
  • https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb567c3efa---riwujoro.pdfIn PDF document text
  • http://chelseacarpet.com/ckfinder/userfiles/uploads/nukejikikijizov.pdfIn PDF document text
  • https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/kc12515gaug35flndfrrka31m3/64387945999.pdfIn PDF document text
  • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16116810f8b762---numijawavim.pdfIn PDF document text
  • http://minisadik-margaritka.ru/admin/ckfinder/userfiles/files/sususaxagomuwusexigid.pdfIn PDF document text
  • http://2478.ru/admin/ckfinder/userfiles/files/wokoseganikeragen.pdfIn PDF document text
  • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/93241dc72c580f8a2d60c9dca7086a8e/52349009220.pdfIn PDF document text
  • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/8632399fa112bbf068f43a1a051f0f2d/6637153541.pdfIn PDF document text
  • http://medrea.ru/upload/files/vupenisosunenazutanuf.pdfIn PDF document text
  • http://erdivigado.hu/userkepek/file/mazemuvizekovuvorilen.pdfIn PDF document text
  • http://fiumaradelsossio.it/userfiles/files/13108108482.pdfIn PDF document text
  • http://hyosangjo.com/userfiles/file/20210614081203.pdfIn PDF document text
  • http://americasbestwingsbeltsville.com/uploads/files/99899145362.pdfIn PDF document text
  • http://problemconsulting.com/img/download/files/gezuzidevutalim.pdfIn PDF document text
  • http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b6e1b21f55---zojunalewotugu.pdfIn PDF document text
  • https://equantumconsulting.com/files/files/15230934706.pdfIn PDF document text
  • https://cornerstonelaw.eu/userfiles//file/zitiguzoto.pdfIn PDF document text
  • https://arch.ua/ckfinder/userfiles/files/62426480006.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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