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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://chcial.ru/uplcv?utm_term=reactions+and+stoichiometry PDF link annotation

  • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/60a0703082a08c65b4f67d9ccd16c4f5/tobuzeleto.pdfIn PDF document text
  • http://industrialdevices.in/uploads/todununisegetugeviziduru.pdfIn PDF document text
  • https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/2cggusfrn7nmihf1np9h5k1fvi/89888954278.pdfIn PDF document text
  • http://nacnsuaa.com/clients/4/49/49ab1acc6c62b5a39110d621a19f71c0/File/pefusirepol.pdfIn PDF document text
  • https://samarpanbharat.org/trila/userfiles/file/jurusopaja.pdfIn PDF document text
  • http://spamsmsgiare.com/media/ftp/file/60210200761.pdfIn PDF document text
  • https://sunrise-photon.com/upfiles/editor/files/20101017629.pdfIn PDF document text
  • http://visusmarble.com/images_upload/files/45431343175.pdfIn PDF document text
  • http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bbaa7b20a47---mepivizetelumuwa.pdfIn PDF document text
  • http://hani-bee.com/userfiles/files/32864852805.pdfIn PDF document text
  • http://garageanything.com/js/upload/files/35864979876.pdfIn PDF document text
  • http://jagatjyotischool.org/jagatjyotischool/userfiles/file/91048304432.pdfIn PDF document text
  • https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/160b2cd3f13599---gikotixanujegatodiguxifad.pdfIn PDF document text
  • https://dmvassociates.com/wp-content/plugins/super-forms/uploads/php/files/f602c4352af7d904e7da9712a7db62df/datofadidagisa.pdfIn PDF document text
  • http://kibbkw.com/uploads/file/nozebusuw.pdfIn PDF document text
  • http://www.redactordecontenidos.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160acaad73b3de---puvixubig.pdfIn PDF document text
  • https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606edc416c89b---kujojowuweg.pdfIn PDF document text
  • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c8fa47cbf06---75068683523.pdfIn PDF document text
  • https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160982ec52fa24---93021807694.pdfIn PDF document text
  • https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/3f99215512907cb8a34622c50ce965b1/5615962117.pdfIn PDF document text
  • https://oglethorpeclub.org/~oglethor/UserFiles/file/54048184957.pdfIn PDF document text
  • https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/b99d216182965e42558781abf7504fb5/80941313007.pdfIn PDF document text
  • http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdb1b015b4c---64231310666.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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