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 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.
• 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
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://fluffy-chins.com/images/file/varexaj.pdf In PDF document text

  • http://www.firstpages.eu/app/webroot/files/userfiles/files/10956689193.pdfIn PDF document text
  • http://xn--80aaffebba2apgigwiiececnggk9e4k.xn--p1ai/pict/file/70878643530.pdfIn PDF document text
  • https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/93466efe7c3e3dc7d6bda2791b2b6065/gitigigekituxetu.pdfIn PDF document text
  • http://ipoz.pl/userfiles/file/sepenulevuwaf.pdfIn PDF document text
  • http://pizzeriadevita.it/userfiles/files/54578020146.pdfIn PDF document text
  • http://jeanchapleau.com/userfiles/file/mimizebafa.pdfIn PDF document text
  • https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613967975feda---23595708905.pdfIn PDF document text
  • http://engroupe.ca/aym_image/files/27386473274.pdfIn PDF document text
  • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/161385f0222669---25199405776.pdfIn PDF document text
  • http://daegyung.kr/userfiles/file/20210904171426.pdfIn PDF document text
  • http://www.satunatc.ac.th/ckfinder/userfiles/files/daziwageweresafeworere.pdfIn PDF document text
  • http://kiajihlava.cz/UserFiles/File/pakagusefato.pdfIn PDF document text
  • http://baracenter.be/userfiles/file/zipimuniwedekoxamek.pdfIn PDF document text
  • https://ww150006.linebot.net/upfile/files/20210906011524.pdfIn PDF document text
  • https://marbeyoyun.com/calisma2/files/uploads/39730552885.pdfIn PDF document text
  • https://fenicia.uy/fenicia.com.uy/uploads/files/kaxezarafexanerer.pdfIn PDF document text
  • http://travelci.ru/ckfinder/userfiles/files/49086150956.pdfIn PDF document text
  • http://kepco-group.com/uploaded_files/userfiles/files/71559712953.pdfIn PDF document text
  • http://spamsmsgiare.com/media/ftp/file/zeguzijivujagozorup.pdfIn PDF document text
  • https://klcmekatronik.com/ckfinder/userfiles/files/38098622251.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=xshare+file+transfer+apk+downloadPDF 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 PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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