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://synerhu.ru/uplcv?utm_term=synology+rs2418%2B+manual PDF link annotation

  • https://soalmatematik.com/userfiles/file/69781408509.pdfIn PDF document text
  • http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/16131859b9ee0a---29825982518.pdfIn PDF document text
  • https://doluhosting.com/calisma2/files/uploads/jonagojade.pdfIn PDF document text
  • http://woori-tour.kr/FileData/ckfinder/files/20210904_BBE286E0429C15DC.pdfIn PDF document text
  • https://girisimhaber.com/uploads/file/barodevawoledadubamasisok.pdfIn PDF document text
  • http://kkslavicin.cz/sites/default/files/file/vebimirod.pdfIn PDF document text
  • http://trivio.it/userfiles/files/95773095609.pdfIn PDF document text
  • http://rsti.biz/files/fck/file/31709416481.pdfIn PDF document text
  • https://sharjahcements.com/images/bulk_images/files/wopomonuwawada.pdfIn PDF document text
  • http://naturalwonders.com/uploads/files/tituzadegoriximot.pdfIn PDF document text
  • http://czdashan.cn/uploadfile/file/2021090523493373499.pdfIn PDF document text
  • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/161306cd144fe7---82411711305.pdfIn PDF document text
  • http://lica.plovdivweek.com/js/ckfinder/userfiles/files/71622067737.pdfIn PDF document text
  • http://talesma.com/E/file/jidilusamuxamozajuwapa.pdfIn PDF document text
  • http://lycee-elm.org/userfiles/file/29790428872.pdfIn PDF document text
  • http://nutrizionisti.eu/public/thread/risorse/file/fuxuwimoxesubefimuzepos.pdfIn PDF document text
  • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/67e6959a3882da5c0b7207f9d79e9339/zetatuxuxubibu.pdfIn PDF document text
  • http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134055584801---zuwoxora.pdfIn PDF document text
  • https://southernwashpros.com/nbloom/fckuploads/file/15010057357.pdfIn PDF document text
  • http://csa.china-led.net/static/editor/ckeditor/ckfinder/upfile/files/84379592589.pdfIn PDF document text
  • http://gcoekmr.org/cukashmir/User_Files/imagefile/10319507834.pdfIn PDF document text
  • http://wolfpackbasketballacademy.com/content_docs/62319796654.pdfIn PDF document text
  • https://abandassociates.com/ckfinder/userfiles/files/wogopesuguxatinuxivoferet.pdfIn PDF document text
  • https://shian-jin.com/UserFiles/files/madipejozu.pdfIn PDF document text
  • http://2013.letnifestiwal.pl/ckfinder/userfiles/files/pojug.pdfIn PDF document text
  • http://thaoduocquyhiem.com/userfiles/image/file/digixugokixi.pdfIn PDF document text
  • http://hydrem.ru/images/file/ruvukebefefupusuvopan.pdfIn PDF document text
  • https://hargagila.com/uploads/image/files/34178254973.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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