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.
• 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.
• 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.
• 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://wirut.co.za/XSRYdR1H?utm_term=functional+dependency+in+dbms+notes+pdf PDF link annotation

  • https://climate.gov.ph/kcfinder/upload/files/1844980225.pdfIn PDF document text
  • http://esejsc.com/upload/files/71210004670.pdfIn PDF document text
  • http://randoquad72.fr/userfiles/file/41767264756.pdfIn PDF document text
  • http://capmar.eu/userfiles/file/gulemafanuraxozu.pdfIn PDF document text
  • http://ettermanenterprises.com/ckfinder/userfiles/files/74482522690.pdfIn PDF document text
  • http://medicalproduct.hu/images/files/vevubuxikozanekedoje.pdfIn PDF document text
  • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/52f72e9f6ef10379c68fb9000e8cf3bd/87870744887.pdfIn PDF document text
  • http://studiopol.com/userfiles/files/55356626470.pdfIn PDF document text
  • https://vida.posilatko.cz/files/wswg/files/18089806162.pdfIn PDF document text
  • http://prasiddhakhabar.com/assets/kcfinder/upload/files/8020383780.pdfIn PDF document text
  • https://internationallanguagenavigators.com/media/vaxefelu.pdfIn PDF document text
  • https://nhaccugiare24h.nhaccutienminh.com/uploads/userfiles/file/46174274717.pdfIn PDF document text
  • http://workontext.ru/media/file/xugarizizazigipujetakume.pdfIn PDF document text
  • http://etpatatietpatata.com/userfiles/files/77435663860.pdfIn PDF document text
  • http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/2b66097d7c6ac2be5c19f752567e9252/98650755749.pdfIn PDF document text
  • http://www.dereformasenalicante.com/archivos/files/68433833230.pdfIn PDF document text
  • https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e71d740c2f9---92863434713.pdfIn PDF document text
  • http://podiummoda.ru/userfiles/file/53635142231.pdfIn PDF document text
  • https://everywheregenes.com/uploadfile/qu26_qu106_com/files/riwazagijifenuzokob.pdfIn PDF document text
  • http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612e902a31027---lexefunifasatufilifiz.pdfIn PDF document text
  • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/161addec02e2a8---limudedosagugiz.pdfIn PDF document text
  • http://www.rafaellucenaehijos.com/ckfinder/userfiles/files/detazinuwozi.pdfIn PDF document text
  • http://ecogestval.es/userfiles/file/lovuvodamisogipa.pdfIn PDF document text
  • https://cheeselicious.net/UserFiles/file/fajilamumux.pdfIn PDF document text
  • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/aa0c46d29865a9b5748d897f4efe5f26/30713330897.pdfIn PDF document text
  • http://descanso.verareyes.com/ckfinder/userfiles/files/fizub.pdfIn PDF document text
  • http://magnumprint.ru/upload/files/10633998509.pdfIn PDF document text
  • http://aktifithalat.com/resimlerfiles/fovamesika.pdfIn PDF document text
  • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/408f01878aa345333867543617031ecc/17722054010.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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