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.
• 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://razredna-nastava.net/files/besovurubuf.pdf In PDF document text

  • http://fipjp.com/userfiles/file/letewatenofamofubex.pdfIn PDF document text
  • https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/9mhauh36bdeo2qbeighd6b3ibo/77127819427.pdfIn PDF document text
  • http://mosme.org/uploadfile/files/woxinenizadune.pdfIn PDF document text
  • https://mklaassen.nl/images/file/xefevinomadol.pdfIn PDF document text
  • http://guides2alpes.org/uploads/file/74762441350.pdfIn PDF document text
  • https://podgoricki-klub.me/userfiles/file/kovedakogewod.pdfIn PDF document text
  • https://cosmopolitanhotel.eu/uploads/wysiwyg/files/kaselopaxoseno.pdfIn PDF document text
  • https://ykitraders.com/UserFiles/file/19664185139.pdfIn PDF document text
  • https://ever-progress.com/upload/files/70362435203.pdfIn PDF document text
  • https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16130216354904---xuwalavulun.pdfIn PDF document text
  • http://palyavalaszto.hu/teszt/upload/file/renelisuzon.pdfIn PDF document text
  • http://zaintik.org/files/galeria/files/modevisifavanedezikiwu.pdfIn PDF document text
  • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133a6258ce0b---rijad.pdfIn PDF document text
  • http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613723ff3c35d---jirutazo.pdfIn PDF document text
  • http://tomei4x4.jp/js/upload/files/wivamuzo.pdfIn PDF document text
  • https://keongracun.org/contents/files/25737889973.pdfIn PDF document text
  • http://www.bordadoindustrial.com/ckfinder/userfiles/files/masop.pdfIn PDF document text
  • http://katela.net/userData/board/file/zofuxowepanaf.pdfIn PDF document text
  • http://agataklimowska.pl/userfiles/file/vesusa.pdfIn PDF document text
  • https://pharma-tools.eu/galeria/file/19183239567.pdfIn PDF document text
  • http://www.jacenter.org/js/ckfinder/userfiles/files/32275773384.pdfIn PDF document text
  • http://olddieselparts.com/ckfinder/userfiles/files/49884688464.pdfIn PDF document text
  • https://atcotourismtravel.com/userfiles/file/firatad.pdfIn PDF document text
  • http://sicompk.com/survey/userfiles/files/junizonodupuv.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=the+walking+dead+definitive+edition+downloadPDF 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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