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://smidgel.ru/uplcv?utm_term=christmas+worksheets+ks2 PDF link annotation

  • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8c54e23b15---lugidafajiwatupumogilibe.pdfIn PDF document text
  • http://mfcwestenkwartier.nl/beta/userfiles/file/sulurusiwekun.pdfIn PDF document text
  • http://www.look4job.gr/images/_user_na/file/demedorojaxetuvixutu.pdfIn PDF document text
  • http://tutaylamhet.com/storage/ckfinder/files/66652464580.pdfIn PDF document text
  • http://dgjinhak.kr/DATA/upload/files/202105300144551690.pdfIn PDF document text
  • https://clinicamanila.com/ckfinder/userfiles/files/27719537688.pdfIn PDF document text
  • https://diedacorporation.net/freesiafiles/file/86586186448.pdfIn PDF document text
  • http://hart-metale.pl/gimnazjum/userfiles/file/xupoxaboxafukuzu.pdfIn PDF document text
  • http://gdwtechnology.com/fckeditor/file/sumugotutaviviwijuzexita.pdfIn PDF document text
  • http://bluiettgriffinwilliams.org/clients/2/2a/2accc941c041fffeac9751862bb8fe41/File/27998001190.pdfIn PDF document text
  • http://wernersuarez.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/81122282483.pdfIn PDF document text
  • https://gwynharmon.com/home/gwyn/public_html/ckfinder/userfiles/files/disidugulusasirikawowij.pdfIn PDF document text
  • http://soft-pro.hr/upload/datoteke/67947081833.pdfIn PDF document text
  • https://asharfilalkulfi.com/ckfinder/userfiles/files/rejed.pdfIn PDF document text
  • https://kurek-rowery.pl/user_pict/file/pabarenudu.pdfIn PDF document text
  • http://studiofapas.it/userfiles/files/85827835027.pdfIn PDF document text
  • http://arenda-v-novosibirske.ru/ckfinder/userfiles/files/45733846179.pdfIn PDF document text
  • http://mientrungland.net/uploads/image/files/57175675715.pdfIn PDF document text
  • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160bc98ec6d299---mowopifinafajasawenizipi.pdfIn PDF document text
  • http://danchrisjewelry.com/userfiles/file/taxisana.pdfIn PDF document text
  • http://jsdarvin.com/files/82220090519.pdfIn PDF document text
  • http://bharatdarshan.net/rgroup/ckfinder/userfiles/files/popegi.pdfIn PDF document text
  • http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/1bab93bd53f2b6f4dcffd4862c52513f/konovureliperekiboxujoko.pdfIn PDF document text
  • https://manuscripthandler.com/userfiles/file/59103580966.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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