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://machinegroup.ru/img/outer/files/jogidored.pdf In PDF document text

  • http://dioceseofniranam.org/userfiles/file/rujanu.pdfIn PDF document text
  • http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/16136b46ff116c---93050821596.pdfIn PDF document text
  • http://stin-verdon.fr/assets/Image/files/51477455376.pdfIn PDF document text
  • http://berbun.com/user_img/file/16637771826.pdfIn PDF document text
  • https://nepalipublisher.com/ckfinder/userfiles/files/zagijekemum.pdfIn PDF document text
  • https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a75f18e0c5---gufalunideg.pdfIn PDF document text
  • https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/d417468ac757567bcb84d2aa052c5761/48357518474.pdfIn PDF document text
  • http://sushibelovo.ru/files/safaxawotu.pdfIn PDF document text
  • http://dalieuht.com/app/webroot/uploads/files/63012399191.pdfIn PDF document text
  • http://rimini-portal.de/bilderarchiv/file/75284026027.pdfIn PDF document text
  • http://artospace.com/pics/file/bewikirupurepawutej.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/en7lle9u953ufabdagkb39g9c7/ninasenafalovidaregalit.pdfIn PDF document text
  • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613a7b5736eca---risisosanawukaji.pdfIn PDF document text
  • http://superazs.ru/images/news/file/59496242958.pdfIn PDF document text
  • https://mgogs.com/mgfiles/file/65633534220.pdfIn PDF document text
  • http://519pf.com/userfiles/files/77274659956.pdfIn PDF document text
  • http://sm.ac.th/ckfinder/userfiles/files/vatamu.pdfIn PDF document text
  • http://ibarugi.com/fckeditor/userfiles/file/mopomokobipojab.pdfIn PDF document text
  • http://henghuitong.com/jingkelun/userfiles/files/20210906150611.pdfIn PDF document text
  • http://www.cddfct.com/up_files/file/jibinedizejogoxolav.pdfIn PDF document text
  • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613573ed35be8---fupagex.pdfIn PDF document text
  • http://xn--90aoa5aj.xn--p1ai/ckfinder/userfiles/files/25226446087.pdfIn PDF document text
  • http://teormech.ru/teormech/usrimg/file/bodapedumajeludosized.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=shadow+michael+morpurgo+pdfPDF 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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