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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://synerhu.ru/uplcv?utm_term=5+letter+words+beginning+with+u PDF link annotation

  • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/16134cbd934261---10549593616.pdfIn PDF document text
  • http://sloplast.com/userfiles/files/13710739423.pdfIn PDF document text
  • https://yourownadviser.com/ckfinder/userfiles/files/13635298277.pdfIn PDF document text
  • https://nezrenweb.com/calisma2/files/uploads/46775267242.pdfIn PDF document text
  • http://circolosilverblufitnessclub.eu/userfiles/files/40179488585.pdfIn PDF document text
  • https://bosingels.nl/ckfinder/userfiles/files/76316176828.pdfIn PDF document text
  • http://melly-incendie.fr/img_db/29764041464.pdfIn PDF document text
  • https://telorgabus.com/contents/files/powijetafanixifal.pdfIn PDF document text
  • https://lawyerupsmart.com/tempimg/file/zumizo.pdfIn PDF document text
  • http://agrion.org/upload/fichier/zedelifoxazewi.pdfIn PDF document text
  • http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/2g754b7eo9skmcec7g7sv7v235/34320190295.pdfIn PDF document text
  • http://chia4kids.ru/ckfinder/userfiles/files/wizipozurivilamudaratep.pdfIn PDF document text
  • http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134ec1f86cbe---68242466676.pdfIn PDF document text
  • http://przyrodnik-kujawy.eu/userfiles/file/95753421765.pdfIn PDF document text
  • http://ping-property.com/user_img/files/desaduvezefu.pdfIn PDF document text
  • https://12shio1.com/contents/files/45087461024.pdfIn PDF document text
  • https://uzsienis.cvzona.lt/resources/img/files/15588278206.pdfIn PDF document text
  • http://xn----gtbercbfedtm3b.xn--p1ai/admin/ckfinder/userfiles/files/34636589414.pdfIn PDF document text
  • https://bimetoor.com/basefile/bimetoorir/files/43884423239.pdfIn PDF document text
  • http://sistarelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/94466803866.pdfIn PDF document text
  • http://marjoleintje.nl/include/userfiles/bamafizedezuxi.pdfIn PDF document text
  • http://parkingparts.com/Upfiles/file/nogojojuxofunujituduxuz.pdfIn PDF document text
  • https://energooptima.hu/upload/File/sijevawuz.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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