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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://nomylo.ru/uplcv?utm_term=android+app+traffic+sniffer PDF link annotation

  • http://palmdale.thepokeluau.com/uploads/files/53862993152.pdfIn PDF document text
  • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16139e6ed876eb---kugenevewisilitixusolek.pdfIn PDF document text
  • https://maychieuvinh.vn/upload/files/5551871140.pdfIn PDF document text
  • http://tatishev.ru/admin/ckfinder/userfiles/files/9681758424.pdfIn PDF document text
  • http://ambulatorioveterinariobubiniregini.eu/userfiles/files/47028251522.pdfIn PDF document text
  • http://domesticsolutionsagency.com/userfiles/file/81367604309.pdfIn PDF document text
  • http://genarchi.com/data/temp/file/pobarawafavebupujovijos.pdfIn PDF document text
  • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613fe92d137df---27644909172.pdfIn PDF document text
  • http://zs-g.jp/app/webroot/js/ckfinder/userfiles/files/towusupikinibegi.pdfIn PDF document text
  • https://xtremefitksa.com/ckfinder/userfiles/files/wusupe.pdfIn PDF document text
  • https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fdbcc528ca---56384922226.pdfIn PDF document text
  • http://tortsurprise.ru/upload/redactor/files/giwuragige.pdfIn PDF document text
  • https://www.kiemtoandongnghi.com/public/plugins/ckfinder/userfiles/files/70643614382.pdfIn PDF document text
  • http://kaitosushisb.com/uploads/files/19839229446.pdfIn PDF document text
  • http://rainternacional.com/userfiles/file/xeniza.pdfIn PDF document text
  • http://supair-lux.hu/ckfinder/userfiles/files/dovonanitolitesalagudo.pdfIn PDF document text
  • https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/5l6meeeus86h51io67ms8j0i8f/bivonetidaf.pdfIn PDF document text
  • http://houselandia.ru/files/geluzugokakekukod.pdfIn PDF document text
  • http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/161399992bb554---14985844539.pdfIn PDF document text
  • https://99shayari.in/userfiles/files/30031895737.pdfIn PDF document text
  • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/8d66aa2cfe4c4d280e16e18d5f7b9b3b/zufijapivakanefapi.pdfIn PDF document text
  • https://eetravel.net/file/25262546587.pdfIn PDF document text
  • https://bdaudit.ro/userfiles/file/5139977051.pdfIn PDF document text
  • http://izeninfo.net/admin/upload/files/vunozifagolidumon.pdfIn PDF document text
  • https://hobbypet.cz/files/file/51096240488.pdfIn PDF document text
  • https://fsreloading.com/userfiles/files/bafugututo.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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