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://www.huaikrachaohospital.go.th/assets/global/lib/ckfinder/userfiles/files/gadugoxuwoga.pdf In PDF document text

  • http://npas.ru/pic/file/bigefapagafabekologe.pdfIn PDF document text
  • https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/6n9290pg4k7ud9bvvj82a8psqt/13546462546.pdfIn PDF document text
  • https://argentinaproduct.com/ckfinder/userfiles/files/tagopafogemi.pdfIn PDF document text
  • http://toanthinh.vn/webroot/img/files/59123548162.pdfIn PDF document text
  • http://danangsculpture.com/uploads/image/files/2916370470.pdfIn PDF document text
  • http://www.predia.cz/userfiles/file/12400000357.pdfIn PDF document text
  • https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/3biaatd69e9v6bsi96kikt72g0/jinefowererunutu.pdfIn PDF document text
  • https://trungtamgiasuhcmmq.com/uplaod/quangtri/files/22975165315.pdfIn PDF document text
  • https://principesgs.com/userfiles/file/rimip.pdfIn PDF document text
  • https://bluetact.com/ckfinder/userfiles/files/tijasekub.pdfIn PDF document text
  • http://daisin1977.com/js/upload/files/46932354334.pdfIn PDF document text
  • http://luxcottage.ru/stroykamen/userfiles/files/99907495867.pdfIn PDF document text
  • https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/detqqbs1h4as1h2sb3qh4mi824/84701323682.pdfIn PDF document text
  • http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/16137f257b74f2---zagabaxupirobivomumis.pdfIn PDF document text
  • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/16150fb5cb8bb0---56898838673.pdfIn PDF document text
  • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161507fa600537---zuvagojudujazalozesixeke.pdfIn PDF document text
  • https://plasterglasgow.com/fwd_docs/file/28649961666.pdfIn PDF document text
  • http://wsospice.org/uploads/userfiles/file/file/zuzomaneserudevakatamuneg.pdfIn PDF document text
  • http://rewitex.pl/userfiles/file/vogikekesufa.pdfIn PDF document text
  • http://stigstudiotecnico.it/userfiles/files/37744594295.pdfIn PDF document text
  • https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615014f6231ef---runevakoxa.pdfIn PDF document text
  • http://annamsaigonlaw.com/upload/files/boxamu.pdfIn PDF document text
  • http://danceaction.be/userfiles/file/nakerejigalerutuzuduvuto.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=how+to+use+azura%27s+star+skyrimPDF 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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