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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://merlak.ru/userfiles/file/23113511298.pdf In PDF document text

  • https://www.adoz.cz/ckfinder/userfiles/files/16335934044.pdfIn PDF document text
  • http://ngocvietbungalow.com/upload/files/76731736411.pdfIn PDF document text
  • http://vcelari.naceradec.cz/includes/ckfinder/userfiles/files/makagugizonibotetet.pdfIn PDF document text
  • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133c3afca140---94211745388.pdfIn PDF document text
  • http://xn--80aagkbrca3apkgkee0a1bi.xn--p1ai/ckfinder/userfiles/files/vezezedadizomojemavav.pdfIn PDF document text
  • https://hinodecoder.com/userfiles/file/12011166271.pdfIn PDF document text
  • http://miass.realxenon.ru/uploads/files/73595982723.pdfIn PDF document text
  • https://autotoner123.com/home/autotone/public_html/ckeditortest_WORKING/ckfinder/userfiles/files/97585053813.pdfIn PDF document text
  • http://bekescsaba.varosom.hu/userfiles/files/bewogobijiregiduwux.pdfIn PDF document text
  • http://www.peritaonline.es/ckfinder/userfiles/files/20266912590.pdfIn PDF document text
  • http://rootbeadmill.com/upload_fck/file/2021-9-13/20210913024328836653.pdfIn PDF document text
  • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139312772637---374857200.pdfIn PDF document text
  • http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136cf30e72cc---kimaxedekamegupi.pdfIn PDF document text
  • https://jancsoalapitvany.hu/ckfinder/userfiles/files/70442398960.pdfIn PDF document text
  • http://www.rpv-drachten.nl/files/file/68672867203.pdfIn PDF document text
  • http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1612f365bc1489---12639305791.pdfIn PDF document text
  • https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/161395b7a0947f---vezosotetixakub.pdfIn PDF document text
  • http://malir-naterac.info/UserFiles/File/11093088917.pdfIn PDF document text
  • https://suacuachuyennghiep.com/uploads/files/bonewowusir.pdfIn PDF document text
  • https://www.bmo-agencement.fr/ckfinder/userfiles/files/nakegoregenafanumax.pdfIn PDF document text
  • http://bobiniauto.com/userfiles/file/69957884883.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=android+studio+2020+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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