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://huntic.ru/uplcv?utm_term=mec%C3%A2nica+dos+solos+2+exerc%C3%ADcios+resolvidos+pdf PDF link annotation

  • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/c8ed338e197cfde175469981615668a7/87903118609.pdfIn PDF document text
  • https://stalbeckers.nl/userfiles/image/file/53578984282.pdfIn PDF document text
  • https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/52f64c2b703461257913c107fffc0dd8/wijofot.pdfIn PDF document text
  • http://jjinline.org/file_upload/file/talemozegi.pdfIn PDF document text
  • http://gd-weimi.com/upfolder/e/files/20210613012115.pdfIn PDF document text
  • https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/30jj2ueaa1pb1mubp6njiu4f7c/70145585160.pdfIn PDF document text
  • http://tantos.jp/js/upload/files/vedilegebukolimavibiro.pdfIn PDF document text
  • http://lawfirm.vn/MINH/user_files/file/tikimizavamobadifaloti.pdfIn PDF document text
  • http://dalaichau.com/files/89232169545.pdfIn PDF document text
  • https://wagaskar.com/media/35748704604.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160efd2570ec13---denip.pdfIn PDF document text
  • http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160b16c382f895---11958978959.pdfIn PDF document text
  • https://activepymes.com/pub/file/kujakidabemalegu.pdfIn PDF document text
  • https://misionesmedellin2030.com/wp-content/plugins/super-forms/uploads/php/files/40ifcqc6hcjb5helfp8rs7u03c/98759186912.pdfIn PDF document text
  • http://afghansolar.com/userfiles/file/82632893191.pdfIn PDF document text
  • http://debsluxe.com/clients/1/17/174397649ed9f07baa8f9d9f48c72a4d/File/93830731276.pdfIn PDF document text
  • https://sogelec-eng.com/files/ckfinder/files/7286440070.pdfIn PDF document text
  • http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/16082deddb7ba5---59560261044.pdfIn PDF document text
  • http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c49090eee5a---54746899718.pdfIn PDF document text
  • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/llc7v61f1r83n4s0289jevrc4c/27407594668.pdfIn PDF document text
  • http://topoint.cc/userfiles/fckFile/20210617130803.pdfIn PDF document text
  • http://nutricion-intravenosa.com/wp-content/plugins/super-forms/uploads/php/files/134a3173a388032084d5f2412032758b/23274601935.pdfIn PDF document text
  • http://gapoom.com/upload/fckeditor/file/lamiwogavem.pdfIn PDF document text
  • http://antonioruizabogados.es/userfiles/file/damavudibilerepikidatip.pdfIn PDF document text
  • https://festival-bg.com/media/ckuploads/files/jamesajoxowu.pdfIn PDF document text
  • https://festival.bg/fckeditorfiles/file/40188344658.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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