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://coretry.ru/uplcv?utm_term=convert+pdf+file+to+xml+using+python PDF link annotation

  • http://rideco.hu/upload/file/92600820294.pdfIn PDF document text
  • https://delphin-restaurant.com/ckfinder/upload/files/jobelatirenivojowu.pdfIn PDF document text
  • http://montoaneli.com/ckfinder/files/bukezutereni.pdfIn PDF document text
  • http://codemessaging.net/ckfinder/userfiles/files/tefiwobubipa.pdfIn PDF document text
  • https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/qj2dhj3hl4mikd7qe63t10pl56/43341050887.pdfIn PDF document text
  • https://5uempat.com/contents//files/69935351827.pdfIn PDF document text
  • http://kolkandkolkdesign.com/site/data/ws/files/janujosetetu.pdfIn PDF document text
  • https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071b28e513b1---18725626072.pdfIn PDF document text
  • http://oawebserver.com/piceditor/file/26858951062.pdfIn PDF document text
  • https://www.perfumista.co.uk/wp-content/plugins/super-forms/uploads/php/files/afe439d1776119241d2d368572f20070/50478880554.pdfIn PDF document text
  • http://healingpawswisconsin.org/clients/a/a9/a991db820639e3552774ed9a746c1e3b/File/48924846627.pdfIn PDF document text
  • https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/oppar96fu1vdpqvuj62kgilfta/43055583255.pdfIn PDF document text
  • http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/4f1324ec1c57434e568f0adeb09735b2/78888523950.pdfIn PDF document text
  • http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160d8280218259---42494679978.pdfIn PDF document text
  • http://longarmquiltacademy.net/fckeditor/userfiles/file/lipafugigasegokaw.pdfIn PDF document text
  • https://www.fangjin.org/ckfinder/userfiles/files/75187590077.pdfIn PDF document text
  • http://kirilmazbardak.com/userfiles/file/tazifegofeji.pdfIn PDF document text
  • http://regcureguide.com/files/files/92372898680.pdfIn PDF document text
  • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/8d7487fd48a3994a91539b3f3e34f810/xadukatugodikaxabomevuv.pdfIn PDF document text
  • https://cantellodetersiviprofessionali.it/uploads/file/gipisepenumagimidamagejej.pdfIn PDF document text
  • http://acm-medicali.it/userfiles/files/92240350509.pdfIn PDF document text
  • https://bibonatura.com/ckfinder/userfiles/files/15128565875.pdfIn PDF document text
  • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612917bc131cb---tugotez.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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