Malicious PDF — malware analysis report

Heuristics 9

• 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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• QR business-process phishing lure high SE_QR_BUSINESS_PROCESS_LURE
  Document asks the recipient to scan a QR code in an HR, payroll, compensation, employee-handbook, DocuSign, or business-signature workflow. This is a high-signal quishing/social-engineering pattern even when the QR payload cannot be decoded statically.
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://rudolphalexander.com/uploads/files/jemafa.pdf In PDF document text

  • http://strategie-online.net/catalogue_dynamique/file/83010102460.pdfIn PDF document text
  • http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1617173313a39e---bamenefowi.pdfIn PDF document text
  • http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161a9d9d029211---99450929958.pdfIn PDF document text
  • https://viceda.com/userfiles/file/16984947512.pdfIn PDF document text
  • https://fond.ru/userfiles/file/89493857560.pdfIn PDF document text
  • https://conexusinternational.com/ckfinder/userfiles/file/petaw.pdfIn PDF document text
  • https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/41b1fcdc40e7904217bf308953a5b678/gexopenot.pdfIn PDF document text
  • https://am-system.eu/ckfinder/userfiles/files/42705249756.pdfIn PDF document text
  • http://geombiagioschettino.eu/userfiles/files/wonadereka.pdfIn PDF document text
  • https://samsungklimalar.com/upload/ckfinder/files/regosudetiv.pdfIn PDF document text
  • http://ed-union05.ru/files/file/zekob.pdfIn PDF document text
  • https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/eec7b5540f9e1cd9bfbb6ec4ff4bf139/70996825172.pdfIn PDF document text
  • https://safecampus.in/cmsCart/upload/file/3554149640.pdfIn PDF document text
  • http://swaving-stalinrichting.nl/ckfinder/userfiles/files/dudimamewotelu.pdfIn PDF document text
  • http://nuovojob.com/userfiles/files/ronufojub.pdfIn PDF document text
  • https://matfplayer.com/calisma2/files/uploads/98195792257.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a6533055bce---63794313307.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/petefejugabobesa.pdfIn PDF document text
  • https://www.zwaanshoek.info/gibreto-cms/xcrud/editors/kcfinder/upload/files/nawolenovuxupe.pdfIn PDF document text
  • http://atletika-pardubice.cz/files/file/97635160331.pdfIn PDF document text
  • http://covina.crazyrockinsushi.com/uploads/files/60798026599.pdfIn PDF document text
  • https://a-metal.e-giant.net/archive/file/files/pokowiwaz.pdfIn PDF document text
  • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/a0d09df584d244d666f41a03269b9d7f/pamopijefolulasozer.pdfIn PDF document text
  • http://rais-center.com/app/webroot/js/kcfinder/upload/files/zekapekorisewokefakavima.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Gsjc/~3/BGAemAmcdTc/uplcv?utm_term=barcode+font+for+excel+2010PDF 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 extracted file (font_00_sfnt_off00043f66.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00043f66.bin)

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