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 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://crewmak.ru/uplcv?utm_term=bluetooth+signal+strength+android PDF link annotation

  • https://pagodatalk.com/_UploadFile/Images/file/gifotavilavasixolowalebig.pdfIn PDF document text
  • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/4cf6beac01413ac51723745c4b982870/43903733557.pdfIn PDF document text
  • http://pokebarslo.com/uploads/files/15162482254.pdfIn PDF document text
  • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613c117322ef3---18060907746.pdfIn PDF document text
  • https://secolink.sk/userfiles/file/xisofodowebirapadotife.pdfIn PDF document text
  • http://imailbox.nl/images/uploadedimages/file/gevomafenateziso.pdfIn PDF document text
  • https://vietnamairlinescorp.org/js/ckfinder/userfiles/files/43483020637.pdfIn PDF document text
  • http://ducnhua.com/upload/files/nebubuvis.pdfIn PDF document text
  • http://akademia-jedenastka.pl/zdjecia/fck/file/81847448909.pdfIn PDF document text
  • https://dmshospital.com/mm_engg/files/30726457588.pdfIn PDF document text
  • http://nuovartea.eu/userfiles/files/nefakesepugivojosipurike.pdfIn PDF document text
  • https://acp-luxusingatlanok.hu/ckfinder/userfiles/files/fosilivasadixo.pdfIn PDF document text
  • https://siahotel.com/userfiles/files/86213701708.pdfIn PDF document text
  • http://kondicionery-dzerzhinskij.ru/upload_picture/file/19815834129.pdfIn PDF document text
  • http://heryeryesil.com/resimlerfiles/67653085199.pdfIn PDF document text
  • http://elencostruzioni.it/userfiles/files/11718050822.pdfIn PDF document text
  • https://rmp-familienanzeigen.de/cms/files/sasivoga.pdfIn PDF document text
  • http://energcomb.net/cms_enercomb/sgi_userfiles/userfiles/files/93833373474.pdfIn PDF document text
  • http://china-miyaco.com/img/file/2021911195722.pdfIn PDF document text
  • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/1614415740a44f---kuzuta.pdfIn PDF document text
  • http://gourmethousemacau.com/UploadFilesfile///ziterakiwo.pdfIn PDF document text
  • http://keacg.com/upload/files/66761722672.pdfIn PDF document text
  • http://becucci.it/userfiles/files/71659504207.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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