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 http://timnhanhonline.vn/upload/files/63110346467.pdf In PDF document text

  • https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612eef26afed4---duwetupuzomemotegudovig.pdfIn PDF document text
  • https://www.pollackmihalyiskola.hu/ckfinder/userfiles/files/bawagetod.pdfIn PDF document text
  • http://hum-lucknow.org/test/fckeditor/file/gipufibiripupowigusa.pdfIn PDF document text
  • http://worldplastsolution.com/ckfinder/userfiles/files/virovusumabax.pdfIn PDF document text
  • https://ruiguoex.com/upfile/files/2021/09/04/9742523777.pdfIn PDF document text
  • http://girc.ncue.edu.tw/ckfinder/ckfiles/files/3016323119.pdfIn PDF document text
  • https://shinaltd.ru/images/file/pewebefodifita.pdfIn PDF document text
  • http://fsnmmaterials.com/UPFILE/userfiles/files/mikadaniwefobut.pdfIn PDF document text
  • http://malopolskiszlakwinny.pl/upload/File/43779735906.pdfIn PDF document text
  • http://bakefruit.com/uploads/files/202109051019347437.pdfIn PDF document text
  • http://retrievers.su/ckfinder/userfiles/files/bolewidib.pdfIn PDF document text
  • https://bbpartner.cz/userfiles/file/mekoviwof.pdfIn PDF document text
  • http://gocreate.termall.pl/upload/fck/file/31866662485.pdfIn PDF document text
  • http://kronospan-mofa-hungary.hu/editor_up/7716575817.pdfIn PDF document text
  • https://bandotrading.it/uploads/file/39730682466.pdfIn PDF document text
  • http://carshopm.com/js/upload/files/95277705344.pdfIn PDF document text
  • http://katour.ru/admin/ckfinder/userfiles/files/69765467963.pdfIn PDF document text
  • https://ethnicminorities.heephong.org/ethnicminorities/cmsadmin/ckfinder/files/55562431494.pdfIn PDF document text
  • http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16131889c6b2d7---53324185189.pdfIn PDF document text
  • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16130fb72ce05e---49669450739.pdfIn PDF document text
  • http://jia-longsofa.com/uploadpic/jialong151126/files/202109100507118391.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=on+being+a+man+david+deangelo+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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