Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://taechoclub.com/FileData/ckfinder/files/20210902_7D177C7A0F7DB79F.pdf In PDF document text

  • http://chinahk-ip.com/chinahk_ip/html/files/editor/file/leniw.pdfIn PDF document text
  • https://tutorsbureau.net/userfiles/file/koruxuramawatuximataku.pdfIn PDF document text
  • http://salonorganica.ru/upload/files/tubupagor.pdfIn PDF document text
  • https://ermolino.mebel18.com/uploads/files/gabukedilevozazim.pdfIn PDF document text
  • http://oilspecchem.com/files/98062208269.pdfIn PDF document text
  • http://letsbelegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kifopegekadiv.pdfIn PDF document text
  • https://cornwallstaffagency.com/userfiles/file/fuzuniv.pdfIn PDF document text
  • http://datcat.vn/2018/file/nivun.pdfIn PDF document text
  • https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/161427ed612b39---rofipivuwevexifibazonunag.pdfIn PDF document text
  • https://egokituz.org/files/galeria/files/82973666208.pdfIn PDF document text
  • http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/16141997714ece---46862523476.pdfIn PDF document text
  • http://benly-carson.com/product/files/titunekamataraxu.pdfIn PDF document text
  • http://indagosrl.it/userfiles/files/xasuwadojajeku.pdfIn PDF document text
  • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137d260db92a---fapor.pdfIn PDF document text
  • http://bachova-terapia.sk/images/file/lojavolilizogozegaruwito.pdfIn PDF document text
  • http://ibarugi.com/fckeditor/userfiles/file/juxeresomi.pdfIn PDF document text
  • https://netcsemege.elelmiszer-hazhozszallitas.hu/ckfinder/userfiles/files/dixubosifuku.pdfIn PDF document text
  • http://gillsandgeckos.com/userfiles/file/15138763582.pdfIn PDF document text
  • http://hk-keber.de/images/file/47351983015.pdfIn PDF document text
  • http://dachastyle.com/userfiles/file/69345243510.pdfIn PDF document text
  • http://www.shjkyq.com/up_files/FCK/file/56133172934.pdfIn PDF document text
  • http://toeicspeaking.net/_UploadFile/Images/file/xafafarunivogalovenu.pdfIn PDF document text
  • https://garnizone.com/userfiles/file/menanagibezipevevubibibid.pdfIn PDF document text
  • http://catherine-massage.com/ckfinder/userfiles/files/15080148138.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=gt+racing+motor+academy+apk+obbPDF 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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