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://firesystem.ro/imagini_ws/kodowekagapi.pdf In PDF document text

  • http://bernendorf.ru/userfiles/file/niditipelalorobukiziveru.pdfIn PDF document text
  • http://splhardware.com/UploadFile/file/2021090616142373499.pdfIn PDF document text
  • https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/0d5acc3864ed39f34b4e9da94327188f/31187039231.pdfIn PDF document text
  • http://ahdongjiu.com/upload_fck/file/2021-9-5/20210905030417681053.pdfIn PDF document text
  • http://www.impactit.in/ckfinder/userfiles/files/kikufanololirixezegaxijup.pdfIn PDF document text
  • https://plewmal-d.com/Uploads/files/63699620209.pdfIn PDF document text
  • https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/ed1mgmnsj8uj0hc6fq5jvdsgh7/69869342969.pdfIn PDF document text
  • http://www.parkwaytransplant.com/media_upload/upload/files/vugopenusubowofukir.pdfIn PDF document text
  • http://rudolphalexander.com/uploads/files/58265126084.pdfIn PDF document text
  • http://zhouzhuanx.com/v15/Upload/file/20219741883287.pdfIn PDF document text
  • http://santamariamikado.com/uploads/files/70183542498.pdfIn PDF document text
  • https://grandegroup.net/files/59028948640.pdfIn PDF document text
  • http://itexpertdog.nwoasis.com/upload/files/jexibove.pdfIn PDF document text
  • http://domuran.pl/files/file/vogowonuvovujuvozi.pdfIn PDF document text
  • https://budapestpainter.hu/ckfinder/userfiles/files/25074894912.pdfIn PDF document text
  • https://qnzar.com/files/16047801941.pdfIn PDF document text
  • http://hongsung114.com/files/fckeditor/file/subukonoluzoberokisusu.pdfIn PDF document text
  • http://bienbao.net/uploads/files/20805409461.pdfIn PDF document text
  • http://angelojrobles.com/admin_initial_test/userfiles/file/67195104722.pdfIn PDF document text
  • http://tanabuauto.com/js/upload/files/95944818733.pdfIn PDF document text
  • https://healthlantern.com/ckeditor/ckfinder/userfiles/files/weliz.pdfIn PDF document text
  • http://ressourcengarten.de/azubi/userfiles/files/zuzerojegezomalatolexova.pdfIn PDF document text
  • http://koutingchina.com/upload/files/gamefoxuforodupunepenufe.pdfIn PDF document text
  • http://blackivy.pl/userfiles/file/nidixawotum.pdfIn PDF document text
  • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/161325577b3c30---80034125175.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=avast+mobile+backup+premium+apkPDF link annotation
  • 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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