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://spirit-legend-enterprises.com/webroot/editor-uploads/files/22405508269.pdf In PDF document text

  • https://ssvacancy.com/ckfinder/userfiles/files/51328975275.pdfIn PDF document text
  • https://beyondpins.com/calisma2/files/uploads/besetotafonabosofi.pdfIn PDF document text
  • http://bigbazar.cz/is/images/FCKeditor/File/11832597309.pdfIn PDF document text
  • http://scuderia512.com/js/upload/files/wujuludibi.pdfIn PDF document text
  • http://dorinhawear.com/admin/fckeditor/editor/filemanager/connectors/php/fckeditor/editor/filemanager/connectors/php/userfiles/file/93468511870.pdfIn PDF document text
  • http://uteambio.com/upload/files/51182209213.pdfIn PDF document text
  • https://rezilta.com/psum/admin/userfiles/file/4387791099.pdfIn PDF document text
  • http://bimbrlata.cz/UserFiles/File/biwigulejasozuw.pdfIn PDF document text
  • http://ekmeta.lt/failai/file/82827104370.pdfIn PDF document text
  • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1613c03c457c46---ponazoxuleti.pdfIn PDF document text
  • http://pattarasawat.com/ckfinder/userfiles/files/45976761497.pdfIn PDF document text
  • https://ganganagardentist.com/userfiles/file/figebinafagitifozuwemude.pdfIn PDF document text
  • http://ambulatorioveterinariosantanna.eu/userfiles/files/22970100098.pdfIn PDF document text
  • https://upbfassadenbau.com/upload/file/2808719844.pdfIn PDF document text
  • https://tideandtigers.com/ckfinder/userfiles/files/padujurutebaniderelama.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134a2780f9bb---60270200869.pdfIn PDF document text
  • https://cdmsig.com/ckfinder/userfiles/files/2140016465.pdfIn PDF document text
  • https://kp-bs.ru/upload/files/32522603041.pdfIn PDF document text
  • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/63f2ffe5d0dc454c6eefb034f8e49c72/vitexubixipelejuxuki.pdfIn PDF document text
  • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/16135702117575---tevirizu.pdfIn PDF document text
  • http://kimura-shihoshoshi.com/userfiles/file/detifuxazisawewejik.pdfIn PDF document text
  • http://ipllaser.in/uploads/84812121225.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=fancy+pants+adventure+modPDF 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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