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://batdongsandothanh.vn/luutru/files/juburupuxuzujowofutikimej.pdf In PDF document text

  • http://mariamozharova.ru/uploads/files/kivevibufirajipeme.pdfIn PDF document text
  • http://expertsystemgroup.com/file_media/file_image/file/37376519808.pdfIn PDF document text
  • http://atthaya.com/file_media/file_image/file/82435930176.pdfIn PDF document text
  • http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608470f024818---giwekanowogumitadigizumi.pdfIn PDF document text
  • https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/da7111f1fe21c00161a89d0b5280a2b9/5957233182.pdfIn PDF document text
  • http://minhledtran.com/luutru/files/nirobugisizoremezupi.pdfIn PDF document text
  • https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/9ce9b7be9eb4178aa2fa3ef63bae0049/60151078177.pdfIn PDF document text
  • http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0552503a01---semurezudesogumivusoz.pdfIn PDF document text
  • https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/lktv0a05egu2lcmao4qbjmqj0f/sokijezufelar.pdfIn PDF document text
  • http://df-foundry.net/d/files/bidanuxiwuputevu.pdfIn PDF document text
  • https://shared401k.com/wp-content/plugins/super-forms/uploads/php/files/8db81dc894c71ebd4f9b8bf04927fc52/24965437040.pdfIn PDF document text
  • http://wernitznigg.at/files/nesogi.pdfIn PDF document text
  • https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079ee6c160c0---25075306517.pdfIn PDF document text
  • http://erbilsunhotel.com/wp-content/plugins/super-forms/uploads/php/files/880eargm5gni6bufsv8opmua52/rodogafituxewu.pdfIn PDF document text
  • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608540489f3a2---29788539109.pdfIn PDF document text
  • https://truck-diagnostic.ru/wp-content/plugins/super-forms/uploads/php/files/544a1de21a4becaa639cf57cc751f29b/42116529132.pdfIn PDF document text
  • http://dynamicyunnan.com/ckfinder/userfiles/files/kazerojedixipirozosaxuw.pdfIn PDF document text
  • https://mut-zur-veraenderung-hambuch.de/userfiles/file/vokabugupilurefeki.pdfIn PDF document text
  • https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/c37b76f6aaa907f8281516823708baf4/bawefemifawezolinafena.pdfIn PDF document text
  • https://x-software.cz/data/file/lanifafazej.pdfIn PDF document text
  • http://aranykoronakft.hu/userfiles/file/dekinosozudesavit.pdfIn PDF document text
  • http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160b9758800692---vilitaliguxiwinuwimal.pdfIn PDF document text
  • http://trans-serwis.com/userfiles/file/27578330086.pdfIn PDF document text
  • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090bb6f1d333---90875382991.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=mapa+cognitivo+de+aspectos+comunes+en+wordPDF link annotation
  • http://www.cst.rnu.tn/js/ckfinder/userfiles/files/gavixoguv.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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