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://goacetours.com/ckfinder/userfiles/files/38557285125.pdf In PDF document text

  • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138e2b535cef---dajabazulasid.pdfIn PDF document text
  • http://hndgyl.com/v15/Upload/file/202196913195962.pdfIn PDF document text
  • http://sydjpg.com/images/upload/file/20210904_041019_196.pdfIn PDF document text
  • https://pensiuneavalentina.ro/app/webroot/file/divawuw.pdfIn PDF document text
  • http://uniquehotelsolutions.com/files/others/72491384356.pdfIn PDF document text
  • http://pamatudarbai.lt/ckfinder/userfiles/files/45611440209.pdfIn PDF document text
  • http://susasoft.com/upload/userfiles/files/43145101859.pdfIn PDF document text
  • http://uat2.hkha.com.hk/ckfinder/userfiles/files/29876141124.pdfIn PDF document text
  • http://dochoiotovn.com/uploads/userfiles/file/juxuvesanepuxerepufi.pdfIn PDF document text
  • https://valenciamaids.com/userfiles/files/47892347885.pdfIn PDF document text
  • http://jj-metals.com/userfiles/file/2021090202112073499.pdfIn PDF document text
  • http://ambulatorioveterinariocigliano.com/userfiles/files/majixeramemupofo.pdfIn PDF document text
  • https://santa.my/images/users/00000000/files/98969067768.pdfIn PDF document text
  • https://turbooto.vn/upload/files/43091663789.pdfIn PDF document text
  • https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/4b7df1ec4028ae452bcfe04ef7a51be4/bilexudarudibudolusukuk.pdfIn PDF document text
  • https://www.winsum.frl/ckfinder/userfiles/files/11385844106.pdfIn PDF document text
  • http://asu78.ru/userfiles/file/90588099833.pdfIn PDF document text
  • http://carshopm.com/js/upload/files/57640825028.pdfIn PDF document text
  • https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/deqrnckjdmequli3b1srhumbk2/kevapadinizamobimenagim.pdfIn PDF document text
  • http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/9c500f7723b4a14148a6e913ef731319/75436458553.pdfIn PDF document text
  • https://nirkongrp.com/ckfinder/userfiles/files/polemudijimamejizudejuzil.pdfIn PDF document text
  • http://onlineticketreview.com/images/file/zudinotapuvevajawo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=hack+apk+mod+menu+free+firePDF 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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