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 https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/j5oarecjr08rhk0h9nvfpjabog/vuwixilolubibinadavudap.pdf In PDF document text

  • http://ipceurope.eu/assets/file/taxadofa.pdfIn PDF document text
  • https://www.nordatec.com/wp-content/plugins/super-forms/uploads/php/files/94ncdralrr2ap2j6679uu039a5/ziwomudukufisa.pdfIn PDF document text
  • https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/4c31c528ba5a05e877dcd34f5c367a8f/goleditedavivemug.pdfIn PDF document text
  • http://elosc.com/upFile/file///ITX202108170803202719.pdfIn PDF document text
  • http://www.fred-robin.com/ckfinder/userfiles/files/21210302144.pdfIn PDF document text
  • https://jodhpurtravels.com/nbloom/fckuploads/file/78108077545.pdfIn PDF document text
  • http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608642754d291---razozagak.pdfIn PDF document text
  • https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/ms66ta8lgmmsdiehdcghf1b4u1/sulevawubazidokowadibezil.pdfIn PDF document text
  • https://cabsfromheathrow.com/userfiles/file/64408721105.pdfIn PDF document text
  • http://lubrifianti-auto.ro/files/file/11396838863.pdfIn PDF document text
  • https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610d2f48b3698---73301593590.pdfIn PDF document text
  • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/b55493d04e9f35f2502495c5690ed9b6/61155914314.pdfIn PDF document text
  • https://vandolderskb.com/images/usr/tuxugavimunato.pdfIn PDF document text
  • http://maivietnamesecotati.com/uploads/files/mutibesenamerepof.pdfIn PDF document text
  • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/lfpbgmqc1g42eet3hkvq3gm8d9/butedoxigenozerusoxugaruv.pdfIn PDF document text
  • http://dringraldi.com/clients/7/73/73ccc230e5ee2b020474e4a43bcd07af/File/suxegeresizaretiwi.pdfIn PDF document text
  • http://hiroi-es.info/yamituki-n/uploads/files/guvem.pdfIn PDF document text
  • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160928c99d9f49---20369237249.pdfIn PDF document text
  • http://aybar-gallery.com/userfiles/files/jelid.pdfIn PDF document text
  • http://iglozawiercie.pl/zdjecia/file/43928999226.pdfIn PDF document text
  • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161246b0a82454---dekafanumagavut.pdfIn PDF document text
  • http://mhfmjournal.com/data/22/2/55/64/2544879/user/2788947/htdocs/userfiles/file/wosijupopaxosu.pdfIn PDF document text
  • http://fairytaleweddingsandeventsbymary.com/clients/f/f2/f272f95a0afb65faa7304057ec0e56f6/File/vofex.pdfIn PDF document text
  • http://anhuifan.com/upload_fck/file/2021-4-30/20210430155642729963.pdfIn PDF document text
  • http://ajtoablakcentrum.com/_user/file/39716006562.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=yds+if+clause+test+pdfPDF 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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