Malicious PDF — malware analysis report

Heuristics 6

• 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 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=common+and+proper+nouns+worksheets+for+kindergarten PDF link annotation

  • https://evg-prague.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160ceadde63132---52403637488.pdfIn PDF document text
  • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/a4c2d26c081dd51e6ca0b3884e211f11/44243520725.pdfIn PDF document text
  • http://unixsensor.com/uploads/files/202109021347004601.pdfIn PDF document text
  • https://www.mii.net/wp-content/plugins/super-forms/uploads/php/files/255806d357580931dfa55c9c575d527d/nufoperarisujafowosu.pdfIn PDF document text
  • https://pablohernandes.com/wp-content/plugins/super-forms/uploads/php/files/623a76031405f31ff21fc3b00e643b8c/vovimedor.pdfIn PDF document text
  • https://questyme.ca/userfiles/file/mowajokukomivozevorobib.pdfIn PDF document text
  • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609b07591681b---lolubumevet.pdfIn PDF document text
  • http://gyndoktors.de/ckfinder/userfiles/files/sedaxabaropunelulitegosij.pdfIn PDF document text
  • https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/l9ngpd14fsvjhc2alt7rrb8a8h/xibobitorije.pdfIn PDF document text
  • http://szentistvanpatika.hu/upload/file/69732954183.pdfIn PDF document text
  • http://www.alexgis.com/siteuploads/editorimg/file/57231223227.pdfIn PDF document text
  • http://fonnepal.org/userfiles/file/vafowef.pdfIn PDF document text
  • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607807e9815f0---31073597964.pdfIn PDF document text
  • https://sunarchegypt.com/userfiles/file/godosusonige.pdfIn PDF document text
  • http://argol-editions.fr/userfiles/file/nadelazozamabopesuv.pdfIn PDF document text
  • http://giaoducvietnamtv.com/images/ckeditor/files/mujavov.pdfIn PDF document text
  • https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/161349313df1ac---93114671365.pdfIn PDF document text
  • http://aa-nusd.jp/lisuluk.pdfIn PDF document text
  • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608714c5e4291---beruwibezugudifepit.pdfIn PDF document text
  • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d8e002edea3---17057310594.pdfIn PDF document text
  • https://sibconsulting.com/contents/files/35858378384.pdfIn PDF document text
  • http://xpressup.com/userfiles/file/34959542772.pdfIn PDF document text
  • http://chiari-web.com/ckfinder/optimist/files/59337657206.pdfIn PDF document text
  • https://tanthueviet.vn/img_data/files/54656664711.pdfIn PDF document text
  • http://webinaris.net/ckfinder/userfiles/publics/files/getugebili.pdfIn PDF document text
  • http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607468d3c4735---95018299861.pdfIn PDF document text
  • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1606e69981c368---fatiwojajajima.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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