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://queure.ru/uplcv?utm_term=viennese+sonatinas+mozart+pdf PDF link annotation

  • http://aj-logistics.com/stock/userfiles/file/69345041786.pdfIn PDF document text
  • http://xn--90aoaidn.xn--p1ai/ckfinder/userfiles/files/89168945486.pdfIn PDF document text
  • https://coffeetuanvang.com/Images_upload/files/69522488118.pdfIn PDF document text
  • https://www.tulsarad.com/my_content/js/ckfinder/userfiles/files/jezigasosalewobufumot.pdfIn PDF document text
  • http://gtlitalia.com/userfiles/files/73471285640.pdfIn PDF document text
  • https://texigo.tw/upfile/files/2021/08/03/gikub.pdfIn PDF document text
  • http://cornucopiafrederick.com/uploads/files/bixaminet.pdfIn PDF document text
  • https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/1475j3s97pjipsceeb75u1vfum/vevisinijez.pdfIn PDF document text
  • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609a5982b914d---natakofofiwe.pdfIn PDF document text
  • http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/wuxorazujerurin.pdfIn PDF document text
  • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c88fa27426---gununiri.pdfIn PDF document text
  • http://akcjonariusz.com/UserFiles/file/36962318886.pdfIn PDF document text
  • https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a464f009c8e---silipozawakovetovawo.pdfIn PDF document text
  • http://emotionpicturesfestival.gr/userfiles/file/29474158510.pdfIn PDF document text
  • http://xn--j1aai7d.xn--p1ai/userfiles/file/27123413201.pdfIn PDF document text
  • http://skolicka.eu/foto/images/file/31285112103.pdfIn PDF document text
  • https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/jfl2l3o5jn1ebo5fmvc81s5u96/44364120871.pdfIn PDF document text
  • http://forglass.sk/userfiles/file/30081369687.pdfIn PDF document text
  • https://kaplaitalia.it/userfiles/files/gajufufonirepe.pdfIn PDF document text
  • http://mastersequipments.com/ckfinder/userfiles/files/farezujikovegofabuduvos.pdfIn PDF document text
  • https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/4a3b7020ad6e01541ac4196c5ab1fadc/94888419528.pdfIn PDF document text
  • http://ural-resyrs.ru/data/file/59561073815.pdfIn PDF document text
  • https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/sphiihkebll8c2uq47d396m8p0/43397708762.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fa49d6386ec---xorapasisabirupilazunip.pdfIn PDF document text
  • http://lnshiyue.com/userfiles/file/20210725050011_1210522835.pdfIn PDF document text
  • http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/lagl470h33mvmmspj5fduvcn9q/43059103018.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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