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
• QR business lure with obfuscated text critical PDF_QR_BUSINESS_LURE_OBFUSCATED_TEXT
  PDF contains a QR-like image and business-process scan instructions that only match after removing invisible Unicode control characters. This indicates deliberate text obfuscation in a QR phishing lure rather than a normal QR code.
• QR-code business verification phishing lure high PDF_QR_PHISHING_LURE
  PDF contains a QR-like image and visible text instructing the recipient to scan or use a QR code for verification, HR, payroll, policy, email, signature, or similar business-process activity. This is a high-signal quishing pattern even when the PDF has no active JavaScript or URI action.
• 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://yubit.co.za/XSRYdR1H?utm_term=love+story+piano+sheet+music PDF link annotation

  • https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/43adc6cf93601a3e015ea800907cf8e7/53396443939.pdfIn PDF document text
  • http://www.peritaonline.es/ckfinder/userfiles/files/96628480409.pdfIn PDF document text
  • http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1617451956ad2a---zamoge.pdfIn PDF document text
  • https://ntpuvoice.com/ckfinder/userfiles/files/sunozubosavu.pdfIn PDF document text
  • http://plise.org/userfiles/file/73908663407.pdfIn PDF document text
  • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/52f48682a0342399df41694ca8c7857a/43432411380.pdfIn PDF document text
  • https://fontan-montag.ru/img/upload/fomuxuzuvakegosekob.pdfIn PDF document text
  • http://valsadindustries.com/userfiles/file/savokopokupixivot.pdfIn PDF document text
  • http://guchen.ru/d/files/1870975885.pdfIn PDF document text
  • http://xn--q20b13r9leepaeb.net/upload/file/202112091003105493.pdfIn PDF document text
  • http://gartenbaukoeln.de/uploads/files/8184666417.pdfIn PDF document text
  • http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/b529c5d77f7912a658147820015978c6/16968286533.pdfIn PDF document text
  • https://morethancars.eu/uploads/edytor/file/43791417172.pdfIn PDF document text
  • http://laptopplus.be/app/webroot/files/userfiles/files/57990084323.pdfIn PDF document text
  • http://sns-russia.ru/userfiles/file/44386140340.pdfIn PDF document text
  • https://venture-hk.com/editor_upload/file/35526984233.pdfIn PDF document text
  • https://heatingboiler.ca/fck_upload/file/zugoju.pdfIn PDF document text
  • http://driver-jazda.pl/upload/file/83664777663.pdfIn PDF document text
  • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a1cc1e3318f---91176944774.pdfIn PDF document text
  • http://cgl.lu/userfiles/files/bikubavavanu.pdfIn PDF document text
  • https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1619c30c872125---58325784059.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 extracted file (font_00_sfnt_off0005943b.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005943b.bin)

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