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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://crysiq.ru/uplcv?utm_term=john+mellencamp+i+need+a+lover PDF link annotation

  • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/522b6a25f9b6cfa6a8bbfbfb62bfc9b9/jugobodufawizelakexiw.pdfIn PDF document text
  • https://medosojewellery.com/userfiles/files/98299021823.pdfIn PDF document text
  • https://www.colline-eternelle.com/ckfinder/userfiles/files/zibesudisujudopup.pdfIn PDF document text
  • https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/3c8f2598e194fcf5095c7ebdcf8ea447/34555353837.pdfIn PDF document text
  • http://lawfirm.vn/MINH/user_files/file/zizevajovumeveval.pdfIn PDF document text
  • http://olddieselparts.com/ckfinder/userfiles/files/xefavob.pdfIn PDF document text
  • https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/vbol8k4b9vtp5gkvca5k3848a5/48535237034.pdfIn PDF document text
  • https://ourcampuswindow.com/ckfinder/userfiles/files/nudumevunatufasakex.pdfIn PDF document text
  • http://www.dgtrans.co.th/login/ckfinder/userfiles/files/zatuzozanipile.pdfIn PDF document text
  • http://carraracucinecomponibilitrapani.it/userfiles/files/lofojurafa.pdfIn PDF document text
  • http://mbjarrahi.com/UploadedFiles/New/file/64309999747.pdfIn PDF document text
  • http://dmkert.hu/files/file/26654804631.pdfIn PDF document text
  • https://pasifikendustriyel.com/userfiles/file/lemaxe.pdfIn PDF document text
  • https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/8eac6b4996b7ed69df3ca4b9cc07f14d/vekutoju.pdfIn PDF document text
  • https://hongming-eco.com/userfiles/file/sokuvusodezi.pdfIn PDF document text
  • http://viral-list-monster.com/ckfinder/userfiles/publics/files/vexudatoxetokojogojizu.pdfIn PDF document text
  • http://babywagen24.de/userfiles/file/68505831319.pdfIn PDF document text
  • http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/161327f09462f1---43613403402.pdfIn PDF document text
  • http://tdjl.com/uploadfile/file///2021091016464595.pdfIn PDF document text
  • https://nepalonlineexam.tisaracademy.com/userfiles/files/71452867672.pdfIn PDF document text
  • http://coquicart.com/ckeditor/ckfinder/core/connector/php/uploads/files/56517402243.pdfIn PDF document text
  • http://aaz.sk/editor_uploads/files/jipunamulaxa.pdfIn PDF document text
  • http://aluminial.pnh.pt/js/ckfinder/userfiles/files/29045208108.pdfIn PDF document text
  • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/28bd7288c694314a5a40cebccb87689e/51289754452.pdfIn PDF document text
  • https://aczv.fr/userfiles/file/66725452842.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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