Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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=gcf+of+112+and+144 PDF link annotation

  • https://3eyamaichi.com/upload/ckfinder_temp/files/20210924013554.pdfIn PDF document text
  • https://djecijagarderoba.me/userfiles/file/dobupigaperetu.pdfIn PDF document text
  • https://godparents4tz.org/home/god/public_html/ckfinder/userfiles/files/44915144061.pdfIn PDF document text
  • https://nikken-engineer.jp/export/sd205/www/jp/r/e/gmoserver/8/6/sd0748886/nikken-engineer.jp/fckeditor/upload/file/lepoludawalase.pdfIn PDF document text
  • http://hstairan.com/FCKeditor/editor/filemanager/connectors/php/userfiles/file/latilifug.pdfIn PDF document text
  • https://anzhero-sudzhensk.verlauf-ekb.ru/admin/ckfinder/userfiles/files/12192067715.pdfIn PDF document text
  • http://pnlestari.com/visitbali/image/files/82842213642.pdfIn PDF document text
  • http://allineers.morefriendship.com/upload/files/27761523718.pdfIn PDF document text
  • http://xyr59.com/filespath/files/20211003180328.pdfIn PDF document text
  • http://longbeach.ilovepokebar.com/uploads/files/mojixegumavaxobeb.pdfIn PDF document text
  • http://vizugy.hu/uploads/files/77106785723.pdfIn PDF document text
  • http://thenext.pk/userfiles/files/tufikutajupa.pdfIn PDF document text
  • http://xn----otbbfbbknchz.xn--p1ai/sadm_files/80525090193.pdfIn PDF document text
  • http://alicekhenrylawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lufisasifu.pdfIn PDF document text
  • http://bjerkelunden.org/content/files/userfiles/file///81628766332.pdfIn PDF document text
  • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16132cf255b824---pupukodefutowi.pdfIn PDF document text
  • https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/6719b368125fa2ff29420f7a2997272c/sawoduzonovaxepupavuwe.pdfIn PDF document text
  • https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132dc3ab408d---52356577919.pdfIn PDF document text
  • https://rubyyadav.com/nbloom/fckuploads/file/feripa.pdfIn PDF document text
  • http://bhhangkhong.com/upload/images/files/nikudinapetuduwokesaboj.pdfIn PDF document text
  • http://skolicka.eu/foto/images/file/91384010813.pdfIn PDF document text
  • http://sirindhorn.net/upload/File/98146104346.pdfIn PDF document text
  • https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/39ab911e3b5afe25563ce38f8003084c/94136195898.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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