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.
• 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://laborke.ru/uplcv?utm_term=filipino+recipe+pdf+free+download PDF link annotation

  • http://hzbmsj.com/images/upload/File/lifokosepuleril.pdfIn PDF document text
  • https://www.burnat-provins.ch/ck/ckfinder/userfiles/files/merigurunezakijoxekef.pdfIn PDF document text
  • http://pc580.cn/upload_fck/file/2021-8-22/20210822055213111397.pdfIn PDF document text
  • https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/160b5c903bc500---31858610861.pdfIn PDF document text
  • http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609f393d9ad3b---91261469254.pdfIn PDF document text
  • http://llux.vn/uploads/files/17426767355.pdfIn PDF document text
  • http://nuuts.mn/uploads/assets/11467303030.pdfIn PDF document text
  • http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/080e3efa2e3ac4ec197ed2eb07644366/tozutufeviruwesizegon.pdfIn PDF document text
  • http://sancheonglittletheaters.com/upload/userfiles/2021/06/files/210629010616.pdfIn PDF document text
  • https://www.masismarketing.com/wp-content/plugins/super-forms/uploads/php/files/2b22ec3c4e0c718816e281892ab62623/zigasowin.pdfIn PDF document text
  • http://kochamsushi.pl/UserFiles/file/81303523447.pdfIn PDF document text
  • http://hit-air.pro/ckfinder/userfiles/files/xevarilifawijezek.pdfIn PDF document text
  • http://slphs66.com/clients/e/e6/e62fa13cff665df70d7481f632b33819/File/36589668706.pdfIn PDF document text
  • https://nabsangram.com/userfiles/file/figopivu.pdfIn PDF document text
  • https://tadimtursu.com/image/files/sidufixutenomaxazavuvoxu.pdfIn PDF document text
  • https://sieuthigo.vn/upload/ck/files/dotinegemizafenaxegenar.pdfIn PDF document text
  • http://dztechfin.com/upload/file///mivumavapet.pdfIn PDF document text
  • http://jfhcoaching.nl/userfiles/files/76995863616.pdfIn PDF document text
  • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/160ae3f025842e---bitinekumisokowurum.pdfIn PDF document text
  • https://mtestbd.com/assets/uploads/files/92548399127.pdfIn PDF document text
  • http://zs-g.jp/app/webroot/js/ckfinder/userfiles/files/33661874064.pdfIn PDF document text
  • http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16088662839fbe---32267849957.pdfIn PDF document text
  • https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/161138806c23c4---zejazenug.pdfIn PDF document text
  • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e2e299dc4c---76436074075.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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