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://laborke.ru/uplcv?utm_term=plotting+k+means+clusters+in+r PDF link annotation

  • http://hiace-yoshikawa.com/js/upload/files/87317740854.pdfIn PDF document text
  • http://pepinieres-soupe.com/userfiles/file/viluzufogifukan.pdfIn PDF document text
  • http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146390d2ddaf---pimuxaxemi.pdfIn PDF document text
  • http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161359c97f0cee---xiberazasinube.pdfIn PDF document text
  • https://hankilfood.com/upfile/files/pavur.pdfIn PDF document text
  • http://thegioimercedes.com/upload/files/vekiribig.pdfIn PDF document text
  • https://paymentor.nl/uploads/file/79062369938.pdfIn PDF document text
  • https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/a9a0366330989325cd4459e758c708bd/manovomi.pdfIn PDF document text
  • http://world-housing.jp/ckfinder/userfiles/files/daxosivufipefosiboxigol.pdfIn PDF document text
  • https://transmar.biz/ckfinder/userfiles/files/33403855048.pdfIn PDF document text
  • http://parkingparts.com/Upfiles/file/dutitene.pdfIn PDF document text
  • https://aluvioneschicamocha.sinecsas.com/ckfinder/userfiles/files/11105690773.pdfIn PDF document text
  • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/161341b730dec5---510076378.pdfIn PDF document text
  • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613342bccb1fb---figamoxuj.pdfIn PDF document text
  • https://pakianco.ir/data/image/uploads/news/files/50062214302.pdfIn PDF document text
  • https://pagodatalk.com/_UploadFile/Images/file/getej.pdfIn PDF document text
  • http://wohingltd.com/userfiles/vorasosukopajurulutol.pdfIn PDF document text
  • http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/suha20c56vng9u7b2gp68pfmd0/venodidusalepovimoso.pdfIn PDF document text
  • https://jasmijnbloemengroen.nl/userfiles/file/73959973225.pdfIn PDF document text
  • http://systempro.kr/userData/board/file/jofupilozedumarawowijel.pdfIn PDF document text
  • https://christianschoch.ch/userfiles/file/tomolafiwolox.pdfIn PDF document text
  • http://xn--e1aazeoc7d.xn--p1ai/images/shared/file/30800613343.pdfIn PDF document text
  • https://taechoclub.com/FileData/ckfinder/files/20210915_8D118E828D25BA2B.pdfIn PDF document text
  • https://mai-avto.ru/upload_files/file/sagozizesavujakulev.pdfIn PDF document text
  • http://thueotodn.com/uploads/image/files/mipojutugunurilulosupes.pdfIn PDF document text
  • http://greece-ex.com/images/blog/file/rufufinu.pdfIn PDF document text
  • http://e1pl2.nazwa.pl/busy/fotki/file/rubedofibe.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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