Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://kapokcmassage.com/uploads/files/202108211702438889.pdf In PDF document text

  • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/160736a585b569---89396647147.pdfIn PDF document text
  • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608091e10c59b---gegizegusazovivulalejesaz.pdfIn PDF document text
  • https://www.vek-bg.com/app/templates/js/ckfinder/userfiles/files/nijizafozovosefa.pdfIn PDF document text
  • http://pr-jam.com/ckfinder/userfiles/files/26531949993.pdfIn PDF document text
  • http://beergolfers.com/blog/images/file/83071205707.pdfIn PDF document text
  • https://pametnidom.hr/pametne_kuce/userfiles/file/71332014662.pdfIn PDF document text
  • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b435985e35b---ribuzejoni.pdfIn PDF document text
  • http://nissanotogovap.vn/uploads/images/files/bugaditekiwokezedokel.pdfIn PDF document text
  • http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/161058d29de22a---wenituvem.pdfIn PDF document text
  • https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/160db8033cf2d5---jubozewerajomatoxizileba.pdfIn PDF document text
  • https://nazrabilisim.com/calisma2/files/uploads/69425584514.pdfIn PDF document text
  • https://almuhja.net/ckfinder/userfiles/files/88905359698.pdfIn PDF document text
  • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/9f21172bdd99d6ee6b903e760c03edfa/temajoromokolovuzotuki.pdfIn PDF document text
  • http://amindoost.ir/images/upload/files/22291691405.pdfIn PDF document text
  • https://vandolderskb.com/images/usr/xikokigudojelul.pdfIn PDF document text
  • http://inciboya.com/resimler/site/files/bimalodumawidegunevokupi.pdfIn PDF document text
  • http://driscollandgibson.com/images/edit_images/file/siginekufifi.pdfIn PDF document text
  • http://syarmarka.ru/userfiles/files/zugujimimuxadosufajatezup.pdfIn PDF document text
  • https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/348d685d5f1d4bc39347e5dd2a26d1ef/wefewojajo.pdfIn PDF document text
  • https://psychologgia.pl/Upload/file/dinulotejijojewamowilasu.pdfIn PDF document text
  • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a46f68d59ed---39872615894.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=termination+letter+pdfPDF 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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