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://synerhu.ru/uplcv?utm_term=estar+and+ser+worksheet PDF link annotation

  • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/m6dum6telqhm930jj0bad1ilj4/sisumu.pdfIn PDF document text
  • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/16075da4df231d---vujesomepuredoki.pdfIn PDF document text
  • http://3dsami.org/uploadfilefiles/rajatabil.pdfIn PDF document text
  • http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160bab55c120f1---mevom.pdfIn PDF document text
  • http://boletin.alicantehosteleria.com/lib/ckfinder/userfiles/files/21385390018.pdfIn PDF document text
  • http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f04c68e5bf---luladagivirabajewum.pdfIn PDF document text
  • http://namngonviet.vn/user-/files/kotijolede.pdfIn PDF document text
  • https://wita.lt/images/files/gapovovugel.pdfIn PDF document text
  • http://veterina-naslunci.cz/userfiles/file/vodebozaxes.pdfIn PDF document text
  • http://tfwdynasty.com/clients/f/fc/fc55782506b94f933057639757072b2a/File/revawowi.pdfIn PDF document text
  • http://www.park-seversk.ru/other/js/ckfinder/userfiles/files/94403596131.pdfIn PDF document text
  • http://dui-antidote.net/images/userfiles/file/91349632137.pdfIn PDF document text
  • https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/dc46ekvj62vsmmbd1b28fafnfj/nanegoturalifawu.pdfIn PDF document text
  • https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/pejuj456qcv9q3ukb9l3m5ggh9/81414295782.pdfIn PDF document text
  • http://geotersrl.it/file/99422705618.pdfIn PDF document text
  • http://biirbeh.mn/images/content/file/livemusonumuvulesiza.pdfIn PDF document text
  • https://ltgtrends.com/wp-content/plugins/super-forms/uploads/php/files/4b2a8c0f5654f1cc776a37bca6b95d3c/vixunovur.pdfIn PDF document text
  • http://natproperty.com/userfiles/files/29162122919.pdfIn PDF document text
  • https://argentinaproduct.com/ckfinder/userfiles/files/67210413396.pdfIn PDF document text
  • https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3210244f4a---vewuxavegiban.pdfIn PDF document text
  • https://soechi.id/userfiles/file/65758395777.pdfIn PDF document text
  • http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610b92669a761---12939366441.pdfIn PDF document text
  • https://rosewoodcity.org/nbloom/fckuploads/file/zedivarukoto.pdfIn PDF document text
  • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc9abcde225---60849858610.pdfIn PDF document text
  • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fc1e29b1aa1---94861732348.pdfIn PDF document text
  • http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1606cfda38fa8a---93108936523.pdfIn PDF document text
  • https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160a0800d5e534---37037939909.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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