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://infrive.ru/uplcv?utm_term=social+phobia+and+anxiety+inventory+%28spai%29+pdf PDF link annotation

  • http://cwesp.biz/upload/file/96338092334.pdfIn PDF document text
  • https://jnfarley.com/wp-content/plugins/super-forms/uploads/php/files/9q1nrr8e5j454socpsr5vd6a27/24973880126.pdfIn PDF document text
  • https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/cecjor1601hdcm95dvmtqoditj/wudipunizefo.pdfIn PDF document text
  • https://www.theknowledgeonline.com/files/lib/ckfinder/userfiles/files/77852794686.pdfIn PDF document text
  • http://chocoenglish.com/_UploadFile/Images/file/maniruroziwip.pdfIn PDF document text
  • https://silatur.com/js/ckfinder/userfiles/files/11276071864.pdfIn PDF document text
  • http://paradisetnl.com/FileData/ckfinder/files/20210716_59AC9A8505A8AC92.pdfIn PDF document text
  • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e5d94d2646---64714213108.pdfIn PDF document text
  • http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609e4d327ffae---xevilarevuvobute.pdfIn PDF document text
  • http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5172a0aee4---gubowazukopasagejegepaj.pdfIn PDF document text
  • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606dbdca09565---duxifimabenifexuwuki.pdfIn PDF document text
  • http://artpolyclinic.com/file/files/50788857992.pdfIn PDF document text
  • http://infinity-pro.ru/userfiles/file/78675711379.pdfIn PDF document text
  • http://www.eurosecurimed.com/ckfinder/userfiles/files/bunejiravese.pdfIn PDF document text
  • http://alnadaoil.com/userfiles/file/3444606342.pdfIn PDF document text
  • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098b7c9d0a82---69160299257.pdfIn PDF document text
  • https://communeouchamps.fr/userfiles/file/98623265346.pdfIn PDF document text
  • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/b7gaaal4ske4qov7ibl0s73ri3/8641950125.pdfIn PDF document text
  • http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16098a43437eb6---xenotitixorim.pdfIn PDF document text
  • http://stressmanagement-karriere.de/userfiles/file/82713626419.pdfIn PDF document text
  • http://www.naraihillgolf.com/admin/userfiles/file/31381941206.pdfIn PDF document text
  • https://educhina.mn/editor/files/48502064694.pdfIn PDF document text
  • https://pankajplast.com/ckfinder/userfiles/files/xojugagujusomutenadow.pdfIn PDF document text
  • https://baileyelectrical.services/wp-content/plugins/super-forms/uploads/php/files/9hv8tpchm54tji2eucu4vdb124/51332610419.pdfIn PDF document text
  • https://www.marjojaspers.nl/ckfinder/userfiles/files/widagu.pdfIn PDF document text
  • http://telekommarketing.com/firme_data/files/fipumakibuzojovukivur.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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