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 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://smidgel.ru/uplcv?utm_term=factoring+trinomials+with+leading+coefficient+not+1+worksheet PDF link annotation

  • https://chief-moving.com/editor_upload/file/63095226915.pdfIn PDF document text
  • https://pcparts.fr/ckfinder/userfiles/files/dokega.pdfIn PDF document text
  • http://haphadoor.com/upload/files/vadomojeludoxovivosufezi.pdfIn PDF document text
  • http://waterlootour.com/FileData/ckfinder/files/20210816_78E587AB91EB669D.pdfIn PDF document text
  • https://tckontrola.hr/files/wefakowirororirowawuwom.pdfIn PDF document text
  • http://atomicattack.com/atomic/fckimages/file/tidekajikogin.pdfIn PDF document text
  • https://dacinsara.ro/fckfiles/file/24116009387.pdfIn PDF document text
  • http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/16116251d4112b---41975228050.pdfIn PDF document text
  • http://meskerjager.nl/media/files/3127681988.pdfIn PDF document text
  • http://exmar.it/foto_fck/file/76900836715.pdfIn PDF document text
  • https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160aeab451f551---86650014254.pdfIn PDF document text
  • http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a28bfcb235b---53853015634.pdfIn PDF document text
  • https://www.bevillelecomte.com/ckfinder/userfiles/files/mibabuwarukur.pdfIn PDF document text
  • http://hyundai-dongdo.vn/images/files/77909667619.pdfIn PDF document text
  • http://thegroverestaurantnj.com/userfiles/files/xulekifevisuxokorog.pdfIn PDF document text
  • http://abwferrellpkwy.com/uploads/files/26037080498.pdfIn PDF document text
  • http://cameradungphat.com/uploads/files/tuzotexodubutimowabisobul.pdfIn PDF document text
  • http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607756fabcc92---11720948429.pdfIn PDF document text
  • https://www.kasekimi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160770846c724d---tutenokuzaken.pdfIn PDF document text
  • http://pm-property.pl/userfiles/file/5645015713.pdfIn PDF document text
  • http://mkngsp.ru/upload/files/59806809716.pdfIn PDF document text
  • https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/63c7da164551e285772fc80057a04172/dugoj.pdfIn PDF document text
  • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/16079835fbc620---11546365090.pdfIn PDF document text
  • https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16073d8d487a01---17303851323.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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