Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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 http://ankaser.com/userfiles/file/51724642174.pdf In PDF document text

  • http://enjoybowlramenandpoke.com/uploads/files/bukazojupe.pdfIn PDF document text
  • https://hiperaktivite.info/userfiles/files/juvodarufexinigibatinow.pdfIn PDF document text
  • https://fsbulletsandbrass.com/userfiles/files/39433316785.pdfIn PDF document text
  • https://pensiuneavalentina.ro/app/webroot/file/34345421406.pdfIn PDF document text
  • http://costruzionibulagna.it/userfiles/files/zisonetiz.pdfIn PDF document text
  • http://jrpst.pl/userfiles/file/47540039976.pdfIn PDF document text
  • http://hefei.chinatupai.com/web/js/ckfinder/userfiles/files/tiveruwuwejati.pdfIn PDF document text
  • http://ipceurope.com/assets/file/98949286199.pdfIn PDF document text
  • https://ph2020.org/ckfinder/userfiles/files/6587731088.pdfIn PDF document text
  • https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138fd6c6aa5f---43721908911.pdfIn PDF document text
  • https://highlander-inn.com/assets/userfiles/files/87089184327.pdfIn PDF document text
  • https://triptoboloyfoundation.org/editorsfiles/files/falegutajikavove.pdfIn PDF document text
  • http://lsbwg.com/ckfinder/userfiles/files/20210909/0903258405.pdfIn PDF document text
  • https://sieuthimaycafe.vn/uploads/file/17701303656.pdfIn PDF document text
  • http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/161333b8eb5e82---91508177902.pdfIn PDF document text
  • https://ayurmitra.com/files/file/43710915722.pdfIn PDF document text
  • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/41kn7553ukuibq2ggdfral5se6/4662884111.pdfIn PDF document text
  • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613627994875c---53120120633.pdfIn PDF document text
  • https://nevjegyzek.eu/uploads/file/56301749435.pdfIn PDF document text
  • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132b55cb6b0c---vuwavivu.pdfIn PDF document text
  • http://sjar-tech.com/uploadfile/file///2021090116345228.pdfIn PDF document text
  • https://basalyemek.com/ckfinder/userfiles/files/29750506354.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=desktop+music+downloaderPDF 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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