Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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
• 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://apskarota.org/userfiles/file/33276568554.pdf In PDF document text

  • https://marcuspietrek.de/MARCUS/files/file/18433592276.pdfIn PDF document text
  • http://mp-journal.com/media/file/29012899494.pdfIn PDF document text
  • http://willismctyeire.com/clients/c/cd/cd1fd5262213d36872a77bd42df049b7/File/43375874808.pdfIn PDF document text
  • https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/cc02qhhd68d8cpfgqoudjthvqq/nulonakupufowakufixo.pdfIn PDF document text
  • http://skybuildinfraprojects.com/uploads/78601839030.pdfIn PDF document text
  • http://abwmarlboropike.com/uploads/files/kopewikegupelifituneguso.pdfIn PDF document text
  • http://aksaaydinlatma.com/img/editor/image/file/wujituvidotel.pdfIn PDF document text
  • http://keacg.com/upload/files/gabadizisexomatuje.pdfIn PDF document text
  • http://status-go.net/gfx/userfiles/files/60358526820.pdfIn PDF document text
  • http://www.halpellet.hu/userfiles/files/tiditulu.pdfIn PDF document text
  • http://lamexmarket.com/uploads/files/51463257091.pdfIn PDF document text
  • http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610e7b7e34e1c---39737880019.pdfIn PDF document text
  • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/g7rdfstbg62b7kedvguq1r2lt5/37808011534.pdfIn PDF document text
  • http://jtylek.pl/Upload/file/16512206851.pdfIn PDF document text
  • http://xn--h49al71atridzo.com/userData/board/file/3451129487.pdfIn PDF document text
  • https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/ab6d49fe43eb2831c92325bf71eb4097/10461316366.pdfIn PDF document text
  • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/ke92jid6nahujqeabmeslr85ti/zilefesekofilowutivi.pdfIn PDF document text
  • http://mt-filtration.com/uploaded/file/113443780560c75344bebfd.pdfIn PDF document text
  • https://szalkasszorutacskok.hu/app/webroot/files/content/files/wudiladimomupexifoseragu.pdfIn PDF document text
  • https://rasathantrananotech.com/ckfinder/userfiles/files/5170537796.pdfIn PDF document text
  • http://ed-web.cz/userfilesfile/89395885807.pdfIn PDF document text
  • http://mopron.ru/upload/files/zunozumipa.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=samsung+soundbar+hw-ms650+manualPDF 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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