Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://archism.ru/uplcv?utm_term=android+developer+volume+control PDF link annotation

  • https://hfbee.tw/upload/ckfinder_temp/files/20210913220848.pdfIn PDF document text
  • http://viermaalh.nl/Bottesteyn/Site/afbeeldingen/file/sugekivu.pdfIn PDF document text
  • http://makesrealsense.com/ckfinder/userfiles/files/42333659110.pdfIn PDF document text
  • http://proxima-online.it/public/file/jisuvotef.pdfIn PDF document text
  • http://emeat.ru/var/files/bivigegodogagadi.pdfIn PDF document text
  • https://xn--72ca1bzcdf9cg5df4n5a8cei.com/userfiles/files/51918329153.pdfIn PDF document text
  • http://nurugelexport.com/ckfinder/userfiles/files/19016137231.pdfIn PDF document text
  • http://timebank.ru/sites/default/files/photos/pagefile/72283590907.pdfIn PDF document text
  • http://altiro.nl/home/tjerk/file/fikufowosamubisege.pdfIn PDF document text
  • http://studiotecnicomaglio.it/userfiles/files/45042893215.pdfIn PDF document text
  • https://marbeyoyun.com/calisma2/files/uploads/67313561717.pdfIn PDF document text
  • https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613afff6ecf83---37903973066.pdfIn PDF document text
  • http://www.singchai.co.th/ckfinder/userfiles/files/733354898.pdfIn PDF document text
  • https://alistairmills.com/ckfinder/userfiles/files/31969540056.pdfIn PDF document text
  • http://xn--2osv9pt2jfpt.com/uploadfiles/files/60812196141.pdfIn PDF document text
  • http://euskararenginkana.eus/files/galeria/files/sigemonajefoliv.pdfIn PDF document text
  • https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/88ef45296876efe0da745814c5107449/52507573094.pdfIn PDF document text
  • http://webspace.mysdam.net/images/newsletter/files/duvuvewisokowasura.pdfIn PDF document text
  • https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/874950179761b4dfa738de820d56a021/80392759043.pdfIn PDF document text
  • http://locnuocvietmy.com/Images_upload/files/jifagukulemabevolesosu.pdfIn PDF document text
  • http://envisystem.com/upload/userfile/files/26394999223.pdfIn PDF document text
  • https://mimpishio1bet.com/contents/files/lenoxalisulefoj.pdfIn PDF document text
  • http://abcbyspu.net/ckfinder/images_store/files/xegudavolojiv.pdfIn PDF document text
  • https://aristi-trap.com/upload/users/files/lumuzop.pdfIn PDF document text
  • http://archinfo.ru/uploads/file/80916471518.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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