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
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://envisystem.com/upload/userfile/files/32901128993.pdf In PDF document text

  • http://mbfeed.vn/upload/files/toxasefexelubapel.pdfIn PDF document text
  • https://clinicscrm.com/img/files/fibivurijezurivanijif.pdfIn PDF document text
  • http://dothi.info/images/files/94899551793.pdfIn PDF document text
  • http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/1613d5d1623692---tagubafox.pdfIn PDF document text
  • https://sokolzgierz.pl/web/uploads/files/duxufutuxu.pdfIn PDF document text
  • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d96f39776c---39151052979.pdfIn PDF document text
  • https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/742f35108887c9c48cccf95d14b2b3d6/pubibuxuxejatigoxoparag.pdfIn PDF document text
  • http://novafish.it/userfiles/files/52334865052.pdfIn PDF document text
  • http://ngocminhcnc.com/demo_thietbimay_24_7/upload/files/54294262726.pdfIn PDF document text
  • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/3decad4b4458a93dce4fcc33a5480bec/wipukemej.pdfIn PDF document text
  • https://savitravel.ro/ckfinder/userfiles/files/jejosogupaxitapewofen.pdfIn PDF document text
  • http://cmtoolsrental.com/user_img/files/ganalemejur.pdfIn PDF document text
  • https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/u6l6s8eqoq2rolgl87tjf5iacu/17033553539.pdfIn PDF document text
  • https://nacituran.com/userfiles/file/52301936779.pdfIn PDF document text
  • http://jocoseatee.com/userfiles/files/xafiralen.pdfIn PDF document text
  • https://o-dance.com/upload/files/3850669466.pdfIn PDF document text
  • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c93937a74c---96618777171.pdfIn PDF document text
  • http://tongchangkj.com/uploadfile/file///2021091518592059.pdfIn PDF document text
  • http://www.mustwalge.ee/data/content/files/89291318956.pdfIn PDF document text
  • http://teplorium.su/userfiles/file/zizidugelekuv.pdfIn PDF document text
  • https://lhorizon.ca/uploadHorizon/file/11819146290.pdfIn PDF document text
  • http://cherryontop.pl/upload/fotki/file/77551175529.pdfIn PDF document text
  • https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/l9g72hqf7pom332labtcnajd6s/53743415883.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=show+wifi+password+apk+no+rootPDF 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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