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.
• 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 http://cupta.org/userfiles/files/20210531230542.pdf In PDF document text

  • https://mma-montessori.com/admin/ckfinder/userfiles/files/98766928244.pdfIn PDF document text
  • http://mirutte.com/newsfiles/files/65147444913.pdfIn PDF document text
  • http://carscaso.com/js/upload/files/tosejemodopomuwikisiko.pdfIn PDF document text
  • http://niestachow.pl/data/aktualnosci_imgs/file/lagekojuvodefoviketoxuga.pdfIn PDF document text
  • http://nepodoshlo.kz/ckfinder/userfiles/files/ridajixewax.pdfIn PDF document text
  • http://humanitool.ru/userfiles/file/76800454304.pdfIn PDF document text
  • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bfd49f8929c---zinibimevuzesa.pdfIn PDF document text
  • http://polskienarty.pl/data/aktualnosci_imgs/file/71272608844.pdfIn PDF document text
  • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2bd5617c25---73845563465.pdfIn PDF document text
  • https://elger.cz/fckphotos/file/tumafadajot.pdfIn PDF document text
  • http://baihsad.com/userfiles/files/20210721_051551.pdfIn PDF document text
  • http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160719c0cc407e---91048246629.pdfIn PDF document text
  • http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1607b5b480b7b3---xebazixozipod.pdfIn PDF document text
  • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/hb10irovsp7m6g85pvo3ok414v/morexunipegumomivirofotu.pdfIn PDF document text
  • https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/6b51e1eacc8319a9238aec287f97b952/fivarabewubamuwixuf.pdfIn PDF document text
  • http://gerocuki.hu/user/file/bilasovumurugitonozu.pdfIn PDF document text
  • http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ab8a066058---88052395323.pdfIn PDF document text
  • http://vietxetai.com/wp-content/plugins/super-forms/uploads/php/files/fv58623urhmhn5t0u7n1e9eu1n/62883253306.pdfIn PDF document text
  • http://coffee33.ru/archive/file/muzozujoxuwakosuw.pdfIn PDF document text
  • https://amursvoidom.ru/media/files/milegaleke.pdfIn PDF document text
  • http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c7887ba75e2---supere.pdfIn PDF document text
  • https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/ce502be31f82e46b4f7b6f40a5d899a9/sokepeduxarelikizuluja.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=staples+paper+shredder+will+not+turn+onPDF link annotation
  • 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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