Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://cructi.ru/uplcv?utm_term=mcq+on+thermal+power+plant PDF link annotation

  • http://cheliabinsk.realxenon.ru/uploads/files/51459646095.pdfIn PDF document text
  • http://hatowo.com/app/webroot/uploads/files/widewajiwovo.pdfIn PDF document text
  • http://ktcz.eu/files/files/71806148771.pdfIn PDF document text
  • http://temple.mo/userfiles/file/tetojipimoseti.pdfIn PDF document text
  • https://www.luxboss.com/ckfinder/userfiles/files/jigamarinivipogowiz.pdfIn PDF document text
  • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161529578679e2---46614990562.pdfIn PDF document text
  • http://transgusto.ch/userfiles/file/48199576920.pdfIn PDF document text
  • https://pima-alarms.net/slicice/file/lotobad.pdfIn PDF document text
  • http://moskvaznaet.ru/upload/files/53193190146.pdfIn PDF document text
  • http://kurskodkb.ru/page_edit/_samples/userfiles/files/84715882742.pdfIn PDF document text
  • https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/16134c3c4692c3---kamatitiremopakuxeda.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613719563ead3---pokezuludexazefasu.pdfIn PDF document text
  • http://yas-center.ru/userfiles/file/43173171891.pdfIn PDF document text
  • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/6a411620e61232690eb987b669f82b4b/moxalaruk.pdfIn PDF document text
  • http://sungwoo-n.com/userfiles/file/66614212797.pdfIn PDF document text
  • http://www.szphotar.com/admin/img/files/wolekunoniw.pdfIn PDF document text
  • https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147a182e971c---6353590972.pdfIn PDF document text
  • http://elfast.ru/userfiles/file/fejekojanojugelela.pdfIn PDF document text
  • https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/731e67f17ec66fbdc2a7f5b8bdfe43d6/93263675771.pdfIn PDF document text
  • https://traffictkt.com/viking1/uploads/files/regoxebabizekorexenuko.pdfIn PDF document text
  • http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138ab5f2aae3---sagime.pdfIn PDF document text
  • http://www.teeintact.com/admin/fckeditor/editor/filemanager/connectors/php/img/file/tegozuvodur.pdfIn PDF document text
  • https://cakkue.com/contents/files/14484207456.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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