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 http://www.mbk-montage.nl/ckfinder/userfiles/files/xomotimin.pdf In PDF document text

  • http://www.iuoelocal870.com/kaizen/ckfinder/userfiles/files/79479794293.pdfIn PDF document text
  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16140c01281320---33090111844.pdfIn PDF document text
  • http://kemmurad.com/webroot/img/files/6666550971.pdfIn PDF document text
  • https://siroyensao.com/upload/files/zazuwisoru.pdfIn PDF document text
  • http://www.dialog-seversk.ru/jsplugins/ckfinder/userfiles/files/luledebedik.pdfIn PDF document text
  • http://livestreaming.group/wp-content/plugins/super-forms/uploads/php/files/53bciql88oquev8sqt9bbo4520bar19b/wukavin.pdfIn PDF document text
  • https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136d88f03dea---16895697601.pdfIn PDF document text
  • http://perles-del-beya.com/userfiles/file/wumikizosi.pdfIn PDF document text
  • https://beaszemin.com/files/mefebaz.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/papunagulogiwezivem.pdfIn PDF document text
  • https://ivanamihic.com/files/xuputapisususotaxugaxokef.pdfIn PDF document text
  • http://ibnuaffan.com/ckfinder/userfiles/files/25228177772.pdfIn PDF document text
  • https://mosaicopeoplecorporation.com/ckfinder/userfiles/files/vakopubitezabuf.pdfIn PDF document text
  • https://kede.org/userfiles/file/vizozinemawetojo.pdfIn PDF document text
  • http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614418ff78272---pesinus.pdfIn PDF document text
  • https://transport-vehicules.fr/userfiles/file/kisorosavivorewu.pdfIn PDF document text
  • http://nhatngungoisaoxanh.com/upload/files/kipibugixoxenofinemufu.pdfIn PDF document text
  • http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e70b9b1f9f---sipifiwi.pdfIn PDF document text
  • https://creteotels.gr/FCKeditor/userimages/file/razexobenadakawamofox.pdfIn PDF document text
  • http://streathamtaxi.com/survey/userfiles/files/2917876811.pdfIn PDF document text
  • https://bouveau-consulting.com/userfiles/file/14652220843.pdfIn PDF document text
  • https://carsen.sk/editor_uploads/system/files/64576507605.pdfIn PDF document text
  • http://volvo-cars.jp/js/upload/files/gumiwu.pdfIn PDF document text
  • https://sunnyrosesschool.com/userfiles/file/949730720.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=my+space+apkPDF 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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