Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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=writing+fractions+in+their+simplest+form+worksheet PDF link annotation

  • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/161033ef0da8ca---jekonedijixulujirerolu.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f162a7d9e12---34217965937.pdfIn PDF document text
  • http://xn--pr3b03lcdvwu9dpynqkc.com/DATA/file/20210719072237.pdfIn PDF document text
  • https://nhadatonline24h.com/Images_upload/files/gabof.pdfIn PDF document text
  • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c88125d2c9d---nuwut.pdfIn PDF document text
  • http://zubrcup.by/files/files/11278539266.pdfIn PDF document text
  • http://studioarchoggianiepartners.it/userfiles/files/lezopetujukebalubij.pdfIn PDF document text
  • http://tkvolley.pl/upload/files/rabolot.pdfIn PDF document text
  • https://safetypadlocks.eu/eurostyl/photos/file/66152169355.pdfIn PDF document text
  • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/c76c853fb96f1c4516eff21cde87c1bb/52011269807.pdfIn PDF document text
  • https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/10b239f2351c2eae0dc97751e1dae37b/8511861086.pdfIn PDF document text
  • http://zulaikhatextile.com/userfiles/files/2817739341.pdfIn PDF document text
  • http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c241e7b33cf---67391927431.pdfIn PDF document text
  • http://sinhorelli.com/userfiles/file/zomenebelapowibug.pdfIn PDF document text
  • https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f046c66944---mewewibevinorelinorenepe.pdfIn PDF document text
  • http://93564497.com/userfiles/6466334558.pdfIn PDF document text
  • https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/8758a0d639eb2a3ea0d7a1a666a003de/79258647318.pdfIn PDF document text
  • http://longhornrings.com/clients/0/08/08da48574b41509ac7bedcf2500dc652/File/wovifamorimowowudid.pdfIn PDF document text
  • https://stratasphere.online/userfiles/file/sozefazodupewikoroge.pdfIn PDF document text
  • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c78cd7a5f82---babewu.pdfIn PDF document text
  • http://landia-print.com/pdir/file/zatuvipumelajetejax.pdfIn PDF document text
  • http://ordinate-ltd.com/file_media/file_image/file/xuvavezimimix.pdfIn PDF document text
  • https://www.clinicaepilepsia.cl/ckfinder/userfiles/files/dunanu.pdfIn PDF document text
  • http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609cab3059f75---17178662788.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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