Malicious PDF — malware analysis report

Heuristics 7

• 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 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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://catamma.ru/uplcv?utm_term=digital+signal+processing+oppenheim+free+pdf PDF link annotation

  • https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/f29768f7a96716bec88deac3cf0496ce/lexolixuwigotoxonaturodap.pdfIn PDF document text
  • http://deckdreams.com/clients/3/34/34055ef41782f8f15ebf372c1e39ecad/File/42773961228.pdfIn PDF document text
  • https://nanosoft.mn/images/content/File/gulibotokelanozuput.pdfIn PDF document text
  • https://autotrans911.com/thread/admin/uploads/file/volapuve.pdfIn PDF document text
  • http://birons.net/wp-content/plugins/super-forms/uploads/php/files/c180eaed1181482b85833fb05da80855/pojolujodoberilobosiv.pdfIn PDF document text
  • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1342d56251---sexosajupireduvifofemaxar.pdfIn PDF document text
  • https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/13954b06439b6d8a903d687bbeb59794/muruvojibif.pdfIn PDF document text
  • https://reviewz.eu/app/webroot/files/userfiles/files/30329032127.pdfIn PDF document text
  • http://vrieshorst.nl/images/uploads/file/ditonolofifovaxixi.pdfIn PDF document text
  • http://hongdanhaudio.com/luutru/files/risujem.pdfIn PDF document text
  • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/q2cbgrnt0q6qqpf8as5lj2gq5l/xexoxijatibewemit.pdfIn PDF document text
  • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/1f91e08122993604df79abc152b2b59a/disuvapoziborowawikamivox.pdfIn PDF document text
  • http://praconsulgroup.ru/pict/file/koporudorotexuzelow.pdfIn PDF document text
  • http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/ae31bc01d42909c2e40f533332259bbe/befilileke.pdfIn PDF document text
  • http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160f92faf46972---42061190884.pdfIn PDF document text
  • http://indianspringhomes.net/userfiles/files/zedivafifemulesosev.pdfIn PDF document text
  • https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/c2309d994a9614536de7ae5886142bf8/fejakuwenotisubibujipu.pdfIn PDF document text
  • http://ccsl.asia/files/laluw.pdfIn PDF document text
  • http://dsagco.com/Upload/file/wepizowemex.pdfIn PDF document text
  • https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606fa355ee0f6---86152719108.pdfIn PDF document text
  • https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a266b4072a0df555bdcd7cbed1d3a308/dubujew.pdfIn PDF document text
  • https://italvaping.com/file/71720263536.pdfIn PDF document text
  • 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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