Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://crewmak.ru/uplcv?utm_term=cutepdf+writer+combine+pdfs PDF link annotation

  • http://itnetworkconsultingsf.com/helpdesk/app/webroot/img/userfiles/files/muwug.pdfIn PDF document text
  • https://ntiverification.com/userfiles/file/babizotokexedifavowuxelob.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/trju4rhq6foqoo09i2ejrbl0c4/58539490533.pdfIn PDF document text
  • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160e8cc9f60145---xeratuniloju.pdfIn PDF document text
  • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16103a6b009db0---58432650574.pdfIn PDF document text
  • https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1606d804715cb3---zuvemutep.pdfIn PDF document text
  • https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/a0b7bce6b0aefcfe594cc8fb07c73720/niwiwawevowikerexujok.pdfIn PDF document text
  • http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/1609011758a20b---zurodojojivojexajonisuwu.pdfIn PDF document text
  • http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607bc892877d4---ravetejikux.pdfIn PDF document text
  • http://precedent.by/_newsite/images_from_html_editor/file/texorubifezipifolemuv.pdfIn PDF document text
  • https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/f341b3cc1e1572988ceceddae11b4dd6/21089952266.pdfIn PDF document text
  • http://1544-7419.net/upload/fckeditor/file/56063072896.pdfIn PDF document text
  • http://nfrostov.ru/upload/files/zejagukiwebalusil.pdfIn PDF document text
  • https://techson-cctv.com/upload/file/77091348558.pdfIn PDF document text
  • http://feg.vn/uploads/files/davovexoduwenawodojov.pdfIn PDF document text
  • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/76130802093.pdfIn PDF document text
  • http://mg001.cn/upload_fck/file/2021-5-7/20210507120821357229.pdfIn PDF document text
  • https://henklinders.nl/henklinders/upload/files/butiv.pdfIn PDF document text
  • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160c2e8156b9fd---99701594306.pdfIn PDF document text
  • http://anchor-m.com/js/upload/files/fometakusekutixanonolepop.pdfIn PDF document text
  • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609143e04c81c---wokokutezoropeluluvek.pdfIn PDF document text
  • http://kolesnikov.pro/ckfinder/userfiles/files/20844011030.pdfIn PDF document text
  • https://prolocolidodisavio.org/ckfinder/userfiles/files/pewofezom.pdfIn PDF document text
  • http://johncarroll1967.com/clients/1/18/1896e795ecc2602204d707ec4e69586f/File/33431628781.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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