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://ketchas.ru/uplcv?utm_term=online+mcqs+test+of+chemistry+class+11+chapter+3 PDF link annotation

  • http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607f1f9c13ffe---livepazevenadetizafoli.pdfIn PDF document text
  • https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/i4o4tp5qp0gbjtg4flk7gc0pg1/27610244671.pdfIn PDF document text
  • http://newdimension.su/userfiles/file/sojugidavepig.pdfIn PDF document text
  • http://sitoad.com/bbqjoekey/files/202108241341404408.pdfIn PDF document text
  • http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082656b46115---6246940381.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607744752f9f8---bozevabevixediruluropusi.pdfIn PDF document text
  • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080ed4d2d5a8---39035675510.pdfIn PDF document text
  • http://fitnessklub-impuls.pl/uploads/assets/file/koxanegobezopuwidikavenex.pdfIn PDF document text
  • http://mayfamilycircle.com/clients/5/53/53cd9f4101e72b768929e5daf979c2da/File/34306851245.pdfIn PDF document text
  • https://juniorclublivorno.com/sitonews/images_upload/files/11314312924.pdfIn PDF document text
  • http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b87f85da2c0---69728777951.pdfIn PDF document text
  • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/160731995c3d1e---liputovutewopew.pdfIn PDF document text
  • https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/96549e48d7304c8dfde5a6da503b1967/fakipegobanoroxoj.pdfIn PDF document text
  • http://cn-junsheng.com/upload/file///2021831221190815.pdfIn PDF document text
  • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160ca13b8e52e7---kulepuvi.pdfIn PDF document text
  • http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/160e0da9807b2f---21411614905.pdfIn PDF document text
  • https://unique.global/wp-content/plugins/super-forms/uploads/php/files/669e103e6a1f6ef19c9c09351e75664b/gamodubupabokuma.pdfIn PDF document text
  • https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e32d9e2597---zexijomemufuraxiku.pdfIn PDF document text
  • http://www.introspekta.si/ckfinder/ckeditor_uploaded_files/files/53456727188.pdfIn PDF document text
  • http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/a5ccb02773590df8b633795ae7148b5f/47174355135.pdfIn PDF document text
  • https://activepymes.com/pub/file/34708529796.pdfIn PDF document text
  • http://ofipapel.org//ckfinder/userfiles/files/gutakowojowufizemub.pdfIn PDF document text
  • http://goodslib.com/userfiles/files/kopixonawawuligibo.pdfIn PDF document text
  • https://www.ltgpartners.com/wp-content/plugins/super-forms/uploads/php/files/968ddc5a1f29e53bd3217d81b5583f1f/38335598919.pdfIn PDF document text
  • http://businessplan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/devasimupedeberu.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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