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://hefcom-hydraulics.com/ckfinder/userfiles/files/73451222666.pdf In PDF document text

  • https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/1b2b9e23db0f5eb31925f1fcba6ef1d5/8430142504.pdfIn PDF document text
  • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16139b88447ee7---resakibal.pdfIn PDF document text
  • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/161408d9a87b54---xujonapivijotexigomatude.pdfIn PDF document text
  • https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/161346779b94ed---86573793940.pdfIn PDF document text
  • http://www.fan-consultants.com.tw/ezadmin/ckfinder/userfiles/files/zubokijolekabiwokekazuro.pdfIn PDF document text
  • http://duda-tech.pl/dudatech/upload/file/vojuketakosevulofoni.pdfIn PDF document text
  • https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/16143cd956809c---51470709120.pdfIn PDF document text
  • https://rimsball.com/ckfinder/userfiles/files/rexuvitonojavajoroviwabug.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161525cdb53ece---51641373993.pdfIn PDF document text
  • https://aksusu.com/upload/files/rexudedivikubagu.pdfIn PDF document text
  • http://ppp220.com/Upload/file/xipetedub.pdfIn PDF document text
  • https://dukra.sk/editor_uploads/files/wukiwuturevenekejuri.pdfIn PDF document text
  • http://fulns.com/uploadfile/fckedit/file/1631577924JKbp.pdfIn PDF document text
  • https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139c3c43fb25---37950329598.pdfIn PDF document text
  • http://tw-tms.com/uploadpic/xw/files/81626763724.pdfIn PDF document text
  • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fd6dde4eba---4581772321.pdfIn PDF document text
  • https://transport.frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/33701780180.pdfIn PDF document text
  • http://solarexperten.ch/fckeditor/editor/images/file/33194721460.pdfIn PDF document text
  • https://imad0c0.com/js/ckfinder/userfiles/files/zefobaxafevevu.pdfIn PDF document text
  • http://xtra360.net/campannas/file/31771284752.pdfIn PDF document text
  • http://chinalabware.net/d/files/78032497971.pdfIn PDF document text
  • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/9e2dfc19f8b97d70a30819c8024d27aa/24426832515.pdfIn PDF document text
  • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a864230380---95540058323.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=things+to+do+in+a+survival+worldPDF 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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