Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://queure.ru/uplcv?utm_term=rufus+download+for+chrome+os PDF link annotation

  • https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/rllb09400mih4imm1hb8656gt4/22051372844.pdfIn PDF document text
  • https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/1omvssp63h8dg7ff791b0jggqu/niromoma.pdfIn PDF document text
  • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613783c853b6b---56309941505.pdfIn PDF document text
  • http://dc-07b6a75bc4d0.breakthrough-physical-therapy.com/userfiles/files/tegimopelof.pdfIn PDF document text
  • https://mbzgogo.xyz/web/img/podborky/files/59200408516.pdfIn PDF document text
  • http://elskup.pl/images/assets/file/19213843581.pdfIn PDF document text
  • http://shbaicun.com/userfiles/file/2021090608225473499.pdfIn PDF document text
  • http://www.klimavill.com/data/editorfile/7015996171.pdfIn PDF document text
  • http://bangladeshceramicsociety.com/uploads/editor/files/refopevupuvivebokedenow.pdfIn PDF document text
  • https://xn--90aoja6ahg5ds.xn--p1ai/uploads/files/17323945115.pdfIn PDF document text
  • http://spielundlicht.de/content_provider/documents/files/vajewe.pdfIn PDF document text
  • http://cec-intl.ru/app/webroot/files/file/16766387427.pdfIn PDF document text
  • http://savages.lu/imagesRTE/files/90866477323.pdfIn PDF document text
  • https://clubforeducation.com/FCKeditor/userfiles/file/17338707713.pdfIn PDF document text
  • http://burmeseburmilla-allevamento.com/userfiles/files/gazared.pdfIn PDF document text
  • https://obermeyer-modemarkt.de/upload/file/jupudizomarosib.pdfIn PDF document text
  • http://hastensandbreakfast.nl/userfiles/file/97102959338.pdfIn PDF document text
  • https://valubil.com/public/uploads/cms_file/cms_files/texokegetibigivi.pdfIn PDF document text
  • http://charivne.info/images/file/51747450071.pdfIn PDF document text
  • http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1613c44dd6064b---28479158251.pdfIn PDF document text
  • https://italvaping.com/file/domubozosoxefinoguga.pdfIn PDF document text
  • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/woteponupok.pdfIn PDF document text
  • http://misbahelmudii.org/ckfinder/userfiles/files/nefiwikopenuxuf.pdfIn PDF document text
  • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16133dff5525ab---74309545699.pdfIn PDF document text
  • http://aarogyamedico.com/userfiles/file/54423842455.pdfIn PDF document text
  • http://factory-01.com/js/upload/files/tebaluwido.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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