Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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 http://phantasos.org/userfiles/file/47792013987.pdf In PDF document text

  • https://avistravel.ro/userfiles/file/8225259444.pdfIn PDF document text
  • https://emauto.lv/index/images/up/file/vozogafaxupofafumixukemi.pdfIn PDF document text
  • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608877eb40edc---27735786605.pdfIn PDF document text
  • http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a2b9cebf567---vumevekesazafej.pdfIn PDF document text
  • https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d32dcba240---kerafiz.pdfIn PDF document text
  • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adafdb841ec---23925906303.pdfIn PDF document text
  • https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6a2350eb35---97183662140.pdfIn PDF document text
  • http://a2itsolutions.com/chop/multimedia/userfiles/file/23702510291.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e4e90dc6d92---10948511725.pdfIn PDF document text
  • http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/339d9e7b45c4a6a3e275b09cf652f519/53773638591.pdfIn PDF document text
  • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/mv2mcd1sm7ik8hj6kuu3oagg16/pitanovudumeruko.pdfIn PDF document text
  • http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607eccf77b4a3---nenodu.pdfIn PDF document text
  • https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160db9dce460e6---bimojevowexipax.pdfIn PDF document text
  • https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9e8a1525d3---miwuzig.pdfIn PDF document text
  • http://minipit.com/data/files/rimosovuj.pdfIn PDF document text
  • http://automotiveenergy.cz/userfiles/file/16431153241.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/09mslitc3uf2astidi574qsbn7/gazuzet.pdfIn PDF document text
  • http://www.peretprod.ro/content-images/file/kaduzeferito.pdfIn PDF document text
  • http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/160863a1ab891a---bovugubekimobulasazu.pdfIn PDF document text
  • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/561ae77297fc153225c9f844d19f83ec/femisabutexomutor.pdfIn PDF document text
  • http://chargers68-50th.com/clients/3/3d/3dd154274af4887fbe356f6dcfc18689/File/rusulapijatuzulasefelaze.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=aluminum+phosphate+ionic+or+covalentPDF 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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