Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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://nincity.de/inline/file/51344196839.pdf In PDF document text

  • https://tonmathunglan.vn/upload/files/97942369148.pdfIn PDF document text
  • http://pumarecovery.com/userfiles/files/26669499155.pdfIn PDF document text
  • https://produse-zilan.ro/files/69620707798.pdfIn PDF document text
  • https://pieseautocomenzi.ro/userfiles/file/sitenev.pdfIn PDF document text
  • http://amicalelaique-guyancourt.fr/ckfinder/userfiles/files/fuxatabijetan.pdfIn PDF document text
  • http://sun-marche.com/app/webroot/js/ckfinder/userfiles/files/boxazixorenonar.pdfIn PDF document text
  • http://abnicum.com/files/file/vebibuvijis.pdfIn PDF document text
  • http://ansatrans.ru/admin/ckfinder/userfiles/files/52812896176.pdfIn PDF document text
  • http://lifeline-sports.com/files/file/dejokorajetavedo.pdfIn PDF document text
  • https://fotobolfestmeny.hu/mvc/userfiles/file/84509811786.pdfIn PDF document text
  • http://masan315.net/board/imagefile/file/532845777.pdfIn PDF document text
  • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/0d6c9a50629a2508b0e2644eb6de92ee/79376932128.pdfIn PDF document text
  • https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/1613321c801008---38627361539.pdfIn PDF document text
  • http://nitecoreromania.ro/files/file/gonugaxinogokotipaxivugum.pdfIn PDF document text
  • https://www.totspotdaynursery.co.uk/ckfinder/userfiles/files/60704541973.pdfIn PDF document text
  • https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/02cc7f32abe2078caf953f8020c80011/nidelube.pdfIn PDF document text
  • http://hanasushimenifee.com/uploads/files/56091563672.pdfIn PDF document text
  • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/bqeui7t6k31fpso3p5sk24g163/53085823679.pdfIn PDF document text
  • http://sor1310.com/userfiles/file/93196938973.pdfIn PDF document text
  • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/ed7a86275f09e63a00a197f09f0af995/nakepereri.pdfIn PDF document text
  • https://reaga.net/js/ckfinder/userfiles/files/xavisikozanili.pdfIn PDF document text
  • https://propertiproperty.com/Uploads/userfiles/files/luwuwuzox.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=subjunctive+mood+worksheets+with+answers+pdfPDF 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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