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://umbabox.com/userfiles/file/jonokatadugonuziwo.pdf In PDF document text

  • http://zhongjiukeji.com/upload_fck/file/2021-9-6/20210906043239265518.pdfIn PDF document text
  • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a944bd0453---39043071207.pdfIn PDF document text
  • http://brickchamber.com/ckfinder/userfiles/files/vagufitajaxuxalivenosip.pdfIn PDF document text
  • http://casaatlantida.com/userfiles/file///sezuwugitovesonetexizu.pdfIn PDF document text
  • http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/a63b199234b2071b22f26d3730b8a944/zaseradodig.pdfIn PDF document text
  • http://pensionpoint.cz/userfiles/files/79088201733.pdfIn PDF document text
  • http://files.ibiza-ferien.de/file/70586135644.pdfIn PDF document text
  • http://sdtrafficticketlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/38757651816.pdfIn PDF document text
  • http://fapannimario.it/userfiles/files/76695291234.pdfIn PDF document text
  • http://jongauger.com/ckfinder/userfiles/files/25376034659.pdfIn PDF document text
  • http://etepi.pt/js/ckfinder/userfiles/files/xipusexapo.pdfIn PDF document text
  • http://ogledalata.bg/uploads/pages/files/80866071024.pdfIn PDF document text
  • http://lblussana.it/images/file/74110635769.pdfIn PDF document text
  • http://vrieshorst.nl/images/uploads/file/sowikup.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a0e14a9e1d---35545265690.pdfIn PDF document text
  • http://blevy.com/ckfinder/userfiles/files/kefaf.pdfIn PDF document text
  • https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/8b53e2b01653784f24d451f2836d4242/mibasemopunaberi.pdfIn PDF document text
  • http://tomdythai.com/userfiles/files/30970463142.pdfIn PDF document text
  • https://hantverksakuten.se/ckfinder/userfiles/files/dirijelidos.pdfIn PDF document text
  • https://postelezmasivu-praha.cz/ckfinder/userfiles/files/maxumakekovonuro.pdfIn PDF document text
  • https://nullemont.fr/nullemont/ckfinder/userfiles/files/25960624224.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=frp+room+apkPDF link annotation
  • http://crossfit28.com.s125853.gridserver.com/siteuploads/editorimg/file/79801073892.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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