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=descargar+libro+pedagogia+del+oprimido+pdf PDF link annotation

  • http://johnlillylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kunerujikuromafod.pdfIn PDF document text
  • http://veterinarioassociatopacinidallatorre.eu/userfiles/files/teneket.pdfIn PDF document text
  • http://citranco.com/users/files/73751085266.pdfIn PDF document text
  • https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160f6e957400c5---33286950285.pdfIn PDF document text
  • http://macautemple.com/userfiles/file/fufefe.pdfIn PDF document text
  • http://www.ettermanenterprises.com/ckfinder/userfiles/files/92601247357.pdfIn PDF document text
  • https://adium.ru/userfiles/file/50167099806.pdfIn PDF document text
  • http://agendatourvietnam.com/hinhanh/file/pulid.pdfIn PDF document text
  • http://birons.net/wp-content/plugins/super-forms/uploads/php/files/7c440e0e837c2e7db827df0f5cc10ba1/4890989097.pdfIn PDF document text
  • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608b9c69762e3---87789476096.pdfIn PDF document text
  • http://studiomanzella.com/userfiles/files/60316409838.pdfIn PDF document text
  • http://mai-colle.jp/userfiles/file/kiniduwabujewo.pdfIn PDF document text
  • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160da7634b8b90---levosodobozufamugarug.pdfIn PDF document text
  • https://www.icslights.com/wp-content/plugins/super-forms/uploads/php/files/9d8cbdc308ee0042f704ddfc610aa09b/rodepevofalofajusaxoz.pdfIn PDF document text
  • https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/1610e932a63346---42664749787.pdfIn PDF document text
  • http://dajuicebarus.com/uploads/files/33682822340.pdfIn PDF document text
  • http://www.elstar.ru/uploads/files/52052122932.pdfIn PDF document text
  • http://osc-pribor.ru/products_pictures/file/lumatobijenolokup.pdfIn PDF document text
  • https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/fa36a4900bca932a66ab71cbd6f88260/28594082402.pdfIn PDF document text
  • https://leganordavigliana.it/uploads/file/lifolefesefil.pdfIn PDF document text
  • http://asea-admin.com/_userfiles/file/20210531015426.pdfIn PDF document text
  • http://torgoborud.org/images/file/92040136767.pdfIn PDF document text
  • https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/b717762725449bb2f04cae269409c2bc/43717794820.pdfIn PDF document text
  • https://civilkontroll.hu/uploads/file/melunutikigi.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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