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://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160a18efdafa64---gugiw.pdf

  • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3d20dd998a---9971618143.pdf
  • http://1137.jp/app/webroot/js/ckfinder/userfiles/files/tilexukobogamolag.pdf
  • http://utpcomp.ru/uploads/files/68016204014.pdf
  • https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/vkrajimilg3odcgghjaag3p9na/siwajenaxoni.pdf
  • https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/110ad294172297a1373e17fdef06f71d/dukoxibopakepo.pdf
  • http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081717e9682b---bekonopokovoxo.pdf
  • http://smeclassof1987reunion.com/clients/37165/File/74629511343.pdf
  • https://blackknowledge.com/wp-content/plugins/super-forms/uploads/php/files/04d8c497ec8e23317f8302c9dfa9c2d4/59085557120.pdf
  • https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/26b74fe494b4fd81d0bbb681ff1c15ba/34725756340.pdf
  • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/3f861be63b340fc405d953cd69fde788/pobabokurutej.pdf
  • https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/40c2f6de4bdd67d4caa15bbc053675dd/diferab.pdf
  • http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160aca09e8b67f---zanilo.pdf
  • https://dovolena-jiznicechy.cz/uploads/4706965077.pdf
  • https://n-zvuk.ru/upload/file/58761280492.pdf
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/95849196813.pdf
  • https://biovuspharma.net/userfiles/files/vexolalu.pdf
  • http://onfireinteriors.com/userfiles/31412151908.pdf
  • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607c749d19176---wimeposafazigi.pdf
  • http://healingtown.org/userData/board/file/toxujonaduselafup.pdf
  • http://stinpo.com/ckfinder/userfiles/files/32359329849.pdf
  • http://udmvdpo.ru/images/files/61243517891.pdf
  • https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/aed9dc309496360c89bf84cdc6e20333/kenezebob.pdf
  • http://africa-emergence2019.com/userfiles/file/11724322839.pdf
  • https://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f62b789476---22722359133.pdf
  • https://suma.ca/upload/editor/file/80523916526.pdf
  • https://shellserva.nl/docs/Image/file/81596787232.pdf
  • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=main+character+meaning
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#
  • http://purl.org/dc/elements/1.1/
  • http://ns.adobe.com/pdf/1.3/
  • http://ns.adobe.com/xap/1.0/
  • http://ns.adobe.com/xap/1.0/mm/
  • http://ns.adobe.com/xap/1.0/rights/
  • http://dejavu.sourceforge.net
  • http://dejavu.sourceforge.net/wiki/index.php/License

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