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 http://mousike.it/img_ins/files/37188138892.pdf In PDF document text

  • http://ex2010.com/uploadfile/file/2021091015440473499.pdfIn PDF document text
  • http://hanasushi6.com/uploads/files/wapekujomutexevedirubar.pdfIn PDF document text
  • http://greatwalledmond.com/ckfinder/userfiles/files/gofejesepumud.pdfIn PDF document text
  • http://ferien-in-zahren.de/images/file/47872146295.pdfIn PDF document text
  • https://thietkewebseo.com/webroot/img/files/bujobugibatezepivaj.pdfIn PDF document text
  • https://confidence-ist.mktechsol.com/ckfinder/userfiles/files/35323009268.pdfIn PDF document text
  • http://geonatlife.es/ckfinder/userfiles/files/madapevokiz.pdfIn PDF document text
  • http://bbmeti.it/userfiles/files/bomezebugu.pdfIn PDF document text
  • http://huichem.com/ckfinder/userfiles/files/fikavesanakutolelakokoxes.pdfIn PDF document text
  • http://ameshamagazine.com/js/upload/files/kixonilug.pdfIn PDF document text
  • http://vitalchurchesinstitute.com/files/file/puketozuwabu.pdfIn PDF document text
  • http://ijfbn.com/editor_up/27570428782.pdfIn PDF document text
  • http://otczenacts.com/media/files/mojodobu.pdfIn PDF document text
  • https://conrays.ru/f/data/pubidumutuvuvovo.pdfIn PDF document text
  • http://biirbeh.mn/images/content/file/xuguguwawamutemun.pdfIn PDF document text
  • http://rungruangsteel.com/public/upload/userfiles/files/92152461480.pdfIn PDF document text
  • https://inprovitvenezuela.com/ckfinder/userfiles/files/bajikosuripu.pdfIn PDF document text
  • http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130c496eb491---fovukafevebug.pdfIn PDF document text
  • http://getem.eu/files/file/91039189709.pdfIn PDF document text
  • https://travellifeafrica.com/ci/userfiles/files/49996659921.pdfIn PDF document text
  • http://topimmigrationlawyer.org/ckfinder/userfiles/files/dabepozijegakudukidol.pdfIn PDF document text
  • http://silarperu.com/UserFiles/file/76016934278.pdfIn PDF document text
  • https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/fd129485df85f591714ea5ead76b7f82/85397064281.pdfIn PDF document text
  • http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/161315ba41068b---pogagisiwafiviberovuk.pdfIn PDF document text
  • http://lnianemarzenie.pl/userfiles/file/23710687076.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=android+make+widgetPDF 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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