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://cructi.ru/uplcv?utm_term=12th+physics+2nd+volume+book+pdf+download PDF link annotation

  • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/b45ef584c71eac4bb8bfb29f61aa393d/61308603587.pdfIn PDF document text
  • https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/0b0e05e961caafaa0e779eadaf18cb0d/89594453118.pdfIn PDF document text
  • https://senhewood.com/d/files/48282708935.pdfIn PDF document text
  • https://khangle.vn/uploads/images/files/73552692490.pdfIn PDF document text
  • http://cecev.com/stockages/files/92730857029.pdfIn PDF document text
  • http://usairsprings.com/userfiles/file/zepesukesoziferabagesu.pdfIn PDF document text
  • https://pubs-icfas.org/icfas_new/dev/ckfinder/userfiles/files/gibotajenujapuned.pdfIn PDF document text
  • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/959036c7f1a1edcc035f2ff56ab54814/pafifatemamexozukunofifo.pdfIn PDF document text
  • http://knuhpharm.kr/userfiles/file/20210616141248.pdfIn PDF document text
  • http://status-go.net/gfx/userfiles/files/90071583109.pdfIn PDF document text
  • https://esportenerd.com/app/webroot/ckfinder/userfiles/files/91606376476.pdfIn PDF document text
  • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/160baafe9e0b2a---gejenorulefupas.pdfIn PDF document text
  • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bddf918e298---dativopimizibajojeru.pdfIn PDF document text
  • http://www.specemc.ru/upload/files/35234516264.pdfIn PDF document text
  • http://ergo-logo-bamberg.de/userfiles/file/64988141430.pdfIn PDF document text
  • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/16075e232ab157---56957257466.pdfIn PDF document text
  • https://mintowncoffee.net/uploads/images/files/89275557472.pdfIn PDF document text
  • https://yourlightingbrand.com/wp-content/plugins/super-forms/uploads/php/files/0e6fcc94c8b9c22cb76b36ef95db2cfd/punizanipoxedomepip.pdfIn PDF document text
  • http://lempreintedubois.fr/userfiles/lempreintedubois.fr/file/jemika.pdfIn PDF document text
  • http://latexindia.com/userfiles/file/padoxefofikulido.pdfIn PDF document text
  • http://airconbank.com/upload/fckeditor/file/4035360851.pdfIn PDF document text
  • http://tipkeo.com/js/ckfinder/userfiles/files/komajofesadir.pdfIn PDF document text
  • https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cb83b3920a---nejasugamomibegaw.pdfIn PDF document text
  • https://argentinaproduct.com/ckfinder/userfiles/files/safagigegekap.pdfIn PDF document text
  • http://ufnk.fr/app/webroot/files/file/nonis.pdfIn PDF document text
  • http://orourkelawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/diwepefonagogubetap.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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