Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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 https://pixomot.ru/uplcv?utm_term=where+to+download+movies+and+series+for+free PDF link annotation

  • http://chataphan.com/file_media/file_image/file/pigigewipuf.pdfIn PDF document text
  • https://i-chat.tw/js/ckfinder/userfiles/files/dukaxadipinerirofixijowuw.pdfIn PDF document text
  • https://pacientes.quiroser.com/UserFilesQUI/file/92824767105.pdfIn PDF document text
  • https://pluviaterra.mx/wp-content/plugins/super-forms/uploads/php/files/53599cefb7c3afae6f8fd6ae805b05a9/36888076724.pdfIn PDF document text
  • http://infracsap.hu/files/file/92126451735.pdfIn PDF document text
  • http://fujieshubao.com/zk/UploadFile/file/2021091102244173499.pdfIn PDF document text
  • http://criminisiepartners.it/userfiles/files/90347427317.pdfIn PDF document text
  • http://hotechike.com/files/files/90245230834.pdfIn PDF document text
  • http://inwama4.vn/webroot/img/files/kifixuvotu.pdfIn PDF document text
  • https://opescom-store.com/uploads/FCK_files/file/vitipitewizur.pdfIn PDF document text
  • https://northcoteplaza.com/userfiles/file/nuzegobin.pdfIn PDF document text
  • https://sailstudy.in/ckfinder/userfiles/files/winanugebekoji.pdfIn PDF document text
  • http://noospc.ru/SITE/files/editor/file/72277700017.pdfIn PDF document text
  • https://www.institutvzdelavani.cz/files/divefozixixal.pdfIn PDF document text
  • http://improntediteatro.it/userfiles/files/21163498708.pdfIn PDF document text
  • http://deborahmayerlawoffices.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/mobotorak.pdfIn PDF document text
  • https://ksboutlet.com/file/files/23134414650.pdfIn PDF document text
  • http://hotel-gerard-dalsace.com/upload/document/74142651957.pdfIn PDF document text
  • https://mabuksusu2.com/contents/files/27888995373.pdfIn PDF document text
  • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135265e832de---dafizakusisefaxawaxuleja.pdfIn PDF document text
  • http://www.valathors.com/ckfinder/userfiles/files/zovadenuviguna.pdfIn PDF document text
  • http://kavernoklub.com/campannas/file/19679019581.pdfIn PDF document text
  • http://damutech.kz/upload/2021/09files/210911115458695870j8z2x.pdfIn PDF document text
  • http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613f41d50e6a6---pelazeli.pdfIn PDF document text
  • http://viviapalermo.com/userfiles/files/tadexuvawutuxowidosobu.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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