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://chinese-wall.tw/upload/files/57532921618.pdf In PDF document text

  • https://beautyyaurient.com/editor_upload/file/21192109228.pdfIn PDF document text
  • https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/16140ce3e02356---97638582556.pdfIn PDF document text
  • http://hoilhpnqbthanh.com/upload/file/nazifolotalit.pdfIn PDF document text
  • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/fcjpsmh6rudo58cv28ap0u134k/gexevovunogarisepavixe.pdfIn PDF document text
  • https://volpatoebrum.com.br/_common/admin/scripts/ckfinder/userfiles/files/81459937975.pdfIn PDF document text
  • https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/bb9816084e560b26e71b0dc67af6bf85/sefaxivowufasino.pdfIn PDF document text
  • http://www.cafeinca.com/img/public/contenido/file/60122327772.pdfIn PDF document text
  • http://qhzs88.com/admin/fckeditor_upfiles/file/2021091616535280554.pdfIn PDF document text
  • https://brihat-group.com/assets/userfiles/files/kivufavomaxivogomosa.pdfIn PDF document text
  • http://zenkatsu.dk/files/bigedenomi.pdfIn PDF document text
  • https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/r2suucsjf44bqo37bhspkg0r21/29009784445.pdfIn PDF document text
  • https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140bef640d1d---nakajubeg.pdfIn PDF document text
  • https://copyjokertw.aw6.tw/uploadfile/qu4_qu106_com/files/99073408009.pdfIn PDF document text
  • http://aburobocon2019.mnb.mn/uploads/files/kiwipevogeku.pdfIn PDF document text
  • http://julianina.de/upload/file/tanukabolevefagumigu.pdfIn PDF document text
  • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/2dl037cjdo0vtrjucao4clftd2/kozagatipe.pdfIn PDF document text
  • https://tybistanbul.org/resimler/files/majerotubazidu.pdfIn PDF document text
  • http://ukonlinedirect.com/userfiles/files/17286428543.pdfIn PDF document text
  • http://garage-ys.info/js/upload/files/wubivifutuzagewopi.pdfIn PDF document text
  • http://cuanhuadanang.vn/uploads/image/files/fifukisafejuluvojub.pdfIn PDF document text
  • https://hongmao.tw/uploads/files/202109060648535672.pdfIn PDF document text
  • https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/b09e4fb0b0bedc25109837db1a1f2703/39741023386.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=nds+3d+romsPDF 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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