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.
• 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://coretry.ru/uplcv?utm_term=discrete+math+rosen+8th+edition+solutions PDF link annotation

  • http://lexprikson.com/admin/style/images/userfiles/file/lifoderebikosavozuxibaxox.pdfIn PDF document text
  • http://connect-event.fr/ckfinder/userfiles/files/71278767503.pdfIn PDF document text
  • http://nexxosrealty.com/userfiles/files/23560495591.pdfIn PDF document text
  • http://1night2daytour.com/ckupload/files/natog.pdfIn PDF document text
  • https://dnm.tw/uploads/files/202109081628545632.pdfIn PDF document text
  • http://tuderprogettazione.it/userfiles/files/31953598904.pdfIn PDF document text
  • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132ee382c8be---96773285923.pdfIn PDF document text
  • http://jilienjrubin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/dugoxu.pdfIn PDF document text
  • http://f-kcc.jp/user_data/userfiles/files/64837195874.pdfIn PDF document text
  • http://eko-uklid.com/files/file/fenolevepol.pdfIn PDF document text
  • http://jimsclub.net/new/board/img_tinfo/file/20210909074753.pdfIn PDF document text
  • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/161354c1e7833b---sepubusirisoxalirilar.pdfIn PDF document text
  • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/16136510c5896b---rexuzozefopozomoputokel.pdfIn PDF document text
  • https://www.douggoodkin.com/admin/ckfinder/userfiles/files/satuvuf.pdfIn PDF document text
  • https://linker.tw/files/perunakemigudidevofogo.pdfIn PDF document text
  • http://www.gleason.com.au/application/third_party/ckfinder/userfiles/files/9016644159.pdfIn PDF document text
  • http://mdknoodles.co/uploads/files/4848267327.pdfIn PDF document text
  • http://historico.uts.edu.co/portal/app/ckfinder/userfiles/files/wunilalejozumakiz.pdfIn PDF document text
  • http://k3projekt.pl/uploads/userfiles/files/bulafosakawagenasuvivopev.pdfIn PDF document text
  • https://bearings.vn/images/ckeditor/files/genomewegewumok.pdfIn PDF document text
  • http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16137ab583a433---66402393665.pdfIn PDF document text
  • https://chandrakantmusicacademy.org/ckfinder/userfiles/files/99615423490.pdfIn PDF document text
  • http://www.temaricerca.com/entry2013/admin/ckfinder/userfiles/files/29586772162.pdfIn PDF document text
  • http://turbotechnik24.de/userfiles/file/movij.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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