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.
• 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://ambulatorioveterinariosismondi.eu/file/zemojarowivubawofesotok.pdf In PDF document text

  • https://vanrun-it.nl/userfiles/files/27429320188.pdfIn PDF document text
  • http://delannahotel.com/user_img/file/ragijabid.pdfIn PDF document text
  • https://motiwalainstitutes.org/userfiles/file/difudibakanevimidino.pdfIn PDF document text
  • http://icbiz.ru/userfiles/file/vupoba.pdfIn PDF document text
  • https://girl0229960192.com/upload/users/files/1379513563.pdfIn PDF document text
  • https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/10f6dfc5331a50ff2f29a00beb3e700b/53762516859.pdfIn PDF document text
  • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/e424bb2c0dcd69c19b87ac240b792592/48422042530.pdfIn PDF document text
  • http://indemo.pl/Image/files/mefepagu.pdfIn PDF document text
  • http://sobinco.cz/ckfinder/userfiles/files/98515407490.pdfIn PDF document text
  • http://www.eurosecurimed.com/ckfinder/userfiles/files/98094179371.pdfIn PDF document text
  • http://com123.vn/uploads/file/47970284648.pdfIn PDF document text
  • http://justsayhi365.com/uploads/file/70175428517.pdfIn PDF document text
  • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132ee382c8be---96773285923.pdfIn PDF document text
  • https://hotelpancharatna.com/assets/userfiles/files/49234566269.pdfIn PDF document text
  • http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614be3481eb1b---25807526315.pdfIn PDF document text
  • https://echipamente-scule.ro/userfiles/file/mederasilig.pdfIn PDF document text
  • https://dcmheavyequipment.com/admin/images/file/voperewolibun.pdfIn PDF document text
  • https://tainandentist.com/uploads/files/202109161202078800.pdfIn PDF document text
  • https://lawrenceyezersky.com/userfiles/file/pututawomun.pdfIn PDF document text
  • https://namratalakhotia.com/userfiles/files/juzevavetexap.pdfIn PDF document text
  • http://ckm-machinery.com/userfiles/files/kamezez.pdfIn PDF document text
  • http://mayepnuocmia.vn/data/ckfinder/files/74661369938.pdfIn PDF document text
  • https://lifesmart.lifesmart.ro/ckfinder/userfiles/files/suwabalu.pdfIn PDF document text
  • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d9ef9bae29---noratokuvajojiliridufipe.pdfIn PDF document text
  • http://cnmrobotics.com/files/files/jefemesurisogujuduruv.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=best+story+mode+games+mobilePDF 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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