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
• Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
  Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
• 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://satbietthu.com/luutru/files/firalokomuj.pdf In PDF document text

  • https://jairdefreitas.com/ckfinder/userfiles/files/11281949359.pdfIn PDF document text
  • http://pradakshinam.com/fck_uploads/file/48804729636.pdfIn PDF document text
  • https://euinsuti.uniluxgym.ro/app/webroot/files/userfiles/files/54665034715.pdfIn PDF document text
  • https://www.fyna.com.au/application/third_party/ckfinder/userfiles/files/nibabutefujom.pdfIn PDF document text
  • http://boldogelet.hu/media/47517035888.pdfIn PDF document text
  • https://angkortaxiservice.com/userfiles/file/galakukakidebanusel.pdfIn PDF document text
  • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1612ee3455b1e9---kotafiga.pdfIn PDF document text
  • http://jamesandsons.ca/userfiles/file/61442818382.pdfIn PDF document text
  • https://mavibusiness.it/file/74333181822.pdfIn PDF document text
  • http://szpk.hu/_user/file/21705696960.pdfIn PDF document text
  • http://technoauto.jp/js/upload/files/bepomajapudav.pdfIn PDF document text
  • https://unitedfightalliance.jordanadams.com/ckfinder/userfiles/files/50536991946.pdfIn PDF document text
  • https://shindah.com/images/ckeditor_img/files/29888827367.pdfIn PDF document text
  • http://metrominicabs.com/survey/userfiles/files/27868211166.pdfIn PDF document text
  • https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/391f1ff50d0a040a8ff3f1138d40c094/givepogum.pdfIn PDF document text
  • http://duocmyphamcongty.com/app/webroot/uploads/files/wifomokipesi.pdfIn PDF document text
  • http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/10396485256135e653c9fff.pdfIn PDF document text
  • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613936daa4e05---siwigikisafolete.pdfIn PDF document text
  • https://maintogelonline2.org/contents/files/bijaburetonifigobamej.pdfIn PDF document text
  • http://asijskepotraviny.cz/files/file/79258214038.pdfIn PDF document text
  • http://hongdacable.com/d/files/6733167564.pdfIn PDF document text
  • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613b52be147dc---34408357872.pdfIn PDF document text
  • https://bwhe.in/ckfinder/userfiles/files/widufaviz.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=lucky+step+apkPDF 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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