Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://cructi.ru/uplcv?utm_term=android+multitouch+test PDF link annotation

  • https://apatity.verlauf-ekb.ru/admin/ckfinder/userfiles/files/zixofepufuk.pdfIn PDF document text
  • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613d2fefa863b---51149645808.pdfIn PDF document text
  • http://7profi.net/userfiles/file/duvenikabusas.pdfIn PDF document text
  • https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/4ff52a555409f9f4e2c4d39bfe834349/lexatakunosabojerafefok.pdfIn PDF document text
  • http://jca-t.com/fck_image/file/somupokezu.pdfIn PDF document text
  • http://pastoret.it/userfiles/files/rogarodufeganepefiweba.pdfIn PDF document text
  • http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16139f66c5c722---55370232325.pdfIn PDF document text
  • http://likuidart.com/files/ckeditor/files/bogomamadanufut.pdfIn PDF document text
  • https://buzascsaba.hu/userFiles/file/5537222325.pdfIn PDF document text
  • https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/b67d997e451a46f66581904921b4606c/30502340515.pdfIn PDF document text
  • http://machi-tomo.xyz/js/ckfinder/userfiles/files/41567363300.pdfIn PDF document text
  • http://rockpapersun.com/upload_mce_image/file/pewolitemo.pdfIn PDF document text
  • http://naasschoolofmotoring.com/fckeditor/userfiles/file/fexuniloli.pdfIn PDF document text
  • http://taihegas.com/filespath/files/20210909200251.pdfIn PDF document text
  • http://jia-longsofa.com/uploadpic/jialong151126/files/202109121132214962.pdfIn PDF document text
  • https://leavereview.com/customerinterview/ckfinder/userfiles/files/mugurefekenamab.pdfIn PDF document text
  • https://pre-www.bridge-academy.com/uploaded/ckeditor/files/supowo.pdfIn PDF document text
  • https://allcreaturesinc.com/files/files/59618589113.pdfIn PDF document text
  • http://smelawservice.com/file_media/file_image/file/witikibuxanana.pdfIn PDF document text
  • https://machnhaduong.com/images/uploads/files/82119543159.pdfIn PDF document text
  • http://otworz-biuro-podrozy.pl/userfiles/file/lupirugatomo.pdfIn PDF document text
  • https://www.khaosanpools.org/ckfinder/userfiles/files/misijeturutotego.pdfIn PDF document text
  • http://net-work.cz/data/file/miwemepudediwisetaruzu.pdfIn PDF document text
  • http://techmechengineers.com/uploads/5687920719.pdfIn PDF document text
  • http://eachfun.com/ckfinder/userfiles/site_eachfun_com/files/26107960902.pdfIn PDF document text
  • http://henanshuangxin.com/d/files/40871390284.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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