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 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.
• 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://cructi.ru/uplcv?utm_term=emperor+social+link+persona+3 PDF link annotation

  • https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/3d87a012ca3964f4d1de2e7b6a887940/taxejilidiwuzak.pdfIn PDF document text
  • http://www.thunderesp.com/ckfinder/ckfinder.htmlfiles/35054914666.pdfIn PDF document text
  • https://zaragozadenoche.es/upload/files/11082891036.pdfIn PDF document text
  • https://sportyou.fr/ckfinder/userfiles/files/nusovubenobuberubonuxoguz.pdfIn PDF document text
  • http://bukharageorgia.com/sites/default/files/file/64184384810.pdfIn PDF document text
  • http://kozszemle.hu/uploads/files/78648465895.pdfIn PDF document text
  • https://northwestconvention.cz/data/files/nukas.pdfIn PDF document text
  • http://arcos-eff.it/userfiles/files/11656523051.pdfIn PDF document text
  • http://kzlo.pl/fotki/fotki/file/49510809869.pdfIn PDF document text
  • http://szentistvanpatika.hu/upload/file/44949006634.pdfIn PDF document text
  • http://xn----7sbakn3aoflleitf3m6a.xn--p1ai/userfiles/file/80488177596.pdfIn PDF document text
  • http://sm.ac.th/ckfinder/userfiles/files/80518701195.pdfIn PDF document text
  • http://realcomfort.ru/content/upload/file/zomenukilogiguwunuwugidab.pdfIn PDF document text
  • http://ihanzao.com/userfiles/file/20210908155103_1418612866.pdfIn PDF document text
  • http://rw-hse-businessconsulting.de/userfiles/file/gikovade.pdfIn PDF document text
  • http://paillasse.hu/userfiles/file/jodifudajidofojog.pdfIn PDF document text
  • https://kimcert.com/E/file/lududiz.pdfIn PDF document text
  • https://cantellodetersiviprofessionali.it/uploads/file/49697912013.pdfIn PDF document text
  • https://mosconi.net/userfiles/file/sagisumaxeba.pdfIn PDF document text
  • https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/50f137906926d35b13d727ad8a013655/38672232303.pdfIn PDF document text
  • https://paulogomeslda.com/userfiles/file/liteposapup.pdfIn PDF document text
  • https://openkomm.yussfone-crm.com/userfiles/file/bewugetupanakujedafuzinob.pdfIn PDF document text
  • http://www.keizerco.nl/userFiles/file/84146869704.pdfIn PDF document text
  • https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/1b2250613141599375cff5907a333b0b/wekona.pdfIn PDF document text
  • http://35ct1.com/images/ckImageFiles/files/46922904793.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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