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.
• 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://coretry.ru/uplcv?utm_term=operation+research+pdf+by+sd+sharma PDF link annotation

  • http://nwatchonline.net/userfiles/file/4053083090.pdfIn PDF document text
  • https://infotechb2blite.com/bot/ckfinder/uf/files/xitowijagobogubaw.pdfIn PDF document text
  • https://lotteppta.com/beta/assets/file/morizatixirijoxejaguj.pdfIn PDF document text
  • https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/jenoots8139ti296vfrv48k1hs/muxatupaxobowu.pdfIn PDF document text
  • https://thefertilizergranulators.com/d/files/47165539758.pdfIn PDF document text
  • https://e-tta.com/app/webroot/userfiles/files/68233300273.pdfIn PDF document text
  • http://noahmission.org/dataroom/file/97043217980.pdfIn PDF document text
  • https://www.nordatec.com/wp-content/plugins/super-forms/uploads/php/files/mmsveplk7embs0soda0ttnvnq4/79202248559.pdfIn PDF document text
  • http://npi-management.org/ressource/site-image/files/89408396562.pdfIn PDF document text
  • http://jpbullies.com/clients/2/2c/2c827f09d77a589c2c5c7da8c033a3f4/File/63205420115.pdfIn PDF document text
  • http://mineraux-et-lithotherapie.fr/ckeditor/upload/files/12912968556.pdfIn PDF document text
  • http://cadeco.com/testingsites/advantage_aviation/assets/media/file/39305124468.pdfIn PDF document text
  • http://www.look4job.gr/images/_user_na/file/milewawimiduminowefo.pdfIn PDF document text
  • https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/ftu3rf0t8cg3e2dcindtvmun19/43219309418.pdfIn PDF document text
  • http://ipllaser.in/uploads/fonepif.pdfIn PDF document text
  • http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f42da623cc---84777266726.pdfIn PDF document text
  • http://iberia-ex.com/images/blog//file/zijotopufopizedavizuwexig.pdfIn PDF document text
  • http://golfproradost.cz/webpagebuilder/ckfinder/userfiles/files/xalusokonavokafozik.pdfIn PDF document text
  • https://i-chat.tw/js/ckfinder/userfiles/files/zizejubaladilebetudubev.pdfIn PDF document text
  • http://marinapogon.pl/upload/file/gifeletezamopakusafeloze.pdfIn PDF document text
  • http://torgoborud.org/images/file/tegamal.pdfIn PDF document text
  • http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609cc377c0cef---fuxulosibomolujimizabuxon.pdfIn PDF document text
  • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/160c7a59f60651---dujipevirakuvav.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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