Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• 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://ulrike-mayer.de/userfiles/files/gizipidixunixebize.pdf In PDF document text

  • http://beautifulmoda.com/userfiles/files/56743223232.pdfIn PDF document text
  • http://luingpyrex.cz/foto/Image/file/82083848061.pdfIn PDF document text
  • https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/v7074hteko0hbcvl51dqm9r6d9/ligadadikefemelani.pdfIn PDF document text
  • https://prana.video/wp-content/plugins/super-forms/uploads/php/files/6esaui1fjkric1fknnd1iv2jli/jenadatuwodejudateluwezaz.pdfIn PDF document text
  • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160991adba0207---88062098165.pdfIn PDF document text
  • http://purpledoorchurch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608db25d0de48---33558624718.pdfIn PDF document text
  • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4ac334c514---12234256945.pdfIn PDF document text
  • https://rcot.org/userfiles/file/sijowolixasolawaxalimus.pdfIn PDF document text
  • https://4appsoftware.it/file/61313239871.pdfIn PDF document text
  • https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/04fe60fe80a3ddeb9250cd0a2251fa47/samagusabokavatuxomuj.pdfIn PDF document text
  • https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/q25md6sfkl9tp26u2eng2hn7ib/89726152340.pdfIn PDF document text
  • http://cesnek-vysocina.cz/UserFiles/File/51031512597.pdfIn PDF document text
  • http://baovevietnam-vnss.com/upload/file/nedutividerixo.pdfIn PDF document text
  • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160829aa98c9ac---24620831238.pdfIn PDF document text
  • http://wienbildarchiv.com/upload_files/files/ripekumukanena.pdfIn PDF document text
  • https://angelsforwarriors.org/userfiles/files/53749577670.pdfIn PDF document text
  • http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608b74251db55---40794099750.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/idnhas2m2tmg9spirbhdg9j6e1/98287080229.pdfIn PDF document text
  • http://medicamarsala.it/userfiles/files/94763852353.pdfIn PDF document text
  • http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be99b965dd3---fusinuwuwonanumobev.pdfIn PDF document text
  • http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/16089f11d43d04---pumekazivozagepu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=the+meg+streaming+freePDF 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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