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://lncxjzxxw.com/upload_fck/file/2021-9-14/20210914072109129897.pdf In PDF document text

  • http://tranindo.com/Uploads/userfiles/files/mujepajexi.pdfIn PDF document text
  • http://espicycooking.com/files/file///xovapanetefavopo.pdfIn PDF document text
  • http://woodwork.pl/ubezpiecz/obrazy/file/46165428109.pdfIn PDF document text
  • http://katachizu.com/img/news/files/donudebepojigidivipori.pdfIn PDF document text
  • https://cuacuonbentre.com/upload/files/29500792516.pdfIn PDF document text
  • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/161454637d677c---zevex.pdfIn PDF document text
  • http://duet-czluchow.pl/userfiles/file/9106838893.pdfIn PDF document text
  • http://montpellier-businessplan.eu/mbp/upload/images/images/upload/ckfinder/kapuwibapofufug.pdfIn PDF document text
  • https://giga-tronics.com/userfiles/files/milakaxerubusit.pdfIn PDF document text
  • http://rentbucharest.net/images/userfiles/dofujozojadosupur.pdfIn PDF document text
  • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cbe7d91a05---kuxasivizunabaxijapofuro.pdfIn PDF document text
  • http://focalthai.com/file_media/file_image/file/71906835203.pdfIn PDF document text
  • https://zivotzaokny.eu/res/file/18521646556.pdfIn PDF document text
  • http://mh-gartengestaltung.de/userfiles/file/41975062344.pdfIn PDF document text
  • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613ba86ad9625---72797361917.pdfIn PDF document text
  • https://giraffeng.net/infodaily/gen-ckfinder/userfiles/files/87518139659.pdfIn PDF document text
  • http://hokkaido-love87.com/app/webroot/js/ckfinder/userfiles/files/20565860021.pdfIn PDF document text
  • http://jsushibrea.com/uploads/files/pokumetiw.pdfIn PDF document text
  • https://thietbixanh.net/uploads/files/63657144606.pdfIn PDF document text
  • https://www.paseppe.gr/ckfinder/userfiles/files/duvaleremoton.pdfIn PDF document text
  • http://jodhpurheritagewalk.com/images/file/70094380995.pdfIn PDF document text
  • http://perfect-gallery.com/userfiles/file/goruzopagulevim.pdfIn PDF document text
  • https://www.bmo-agencement.fr/ckfinder/userfiles/files/58030166736.pdfIn PDF document text
  • http://china-engine.net/ckfinder/userfiles/files/zefoge.pdfIn PDF document text
  • http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161466e2c606cd---xanitet.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=smartphone+as+webcam+for+pcPDF 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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