Malicious PDF — malware analysis report

Heuristics 8

• 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
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://wastran.ru/uplcv?utm_term=galaxy+s9+qr+code+scanner PDF link annotation

  • http://sino-web.net/filespath/files/20210903215456.pdfIn PDF document text
  • https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/4f9d4800cd43e113bffbc3e4d4e8c414/1495650127.pdfIn PDF document text
  • http://msinziniering.com/userfiles/file/82243026441.pdfIn PDF document text
  • http://dobre-jaja.com/Upload/file/53355341100.pdfIn PDF document text
  • https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613582fcc8489---misigexotuxofiri.pdfIn PDF document text
  • https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/3a12a52ee5894ee0182d510853cb9272/firodanakapu.pdfIn PDF document text
  • http://www.larucheapain.fr/ljk/file/keridowewo.pdfIn PDF document text
  • http://metisentry.net/ckfinder/userfiles/files/diwedaxutesazal.pdfIn PDF document text
  • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/47e6cgpdbdhm8h84orkvuj6751/mesomiruvidone.pdfIn PDF document text
  • http://directartdeal.com/uploaded_files/userfiles/files/72424164671.pdfIn PDF document text
  • http://tianfonmm.com/d/files/biwixunumonupupemuxugur.pdfIn PDF document text
  • https://vr-spagna-20.effievirtual.com/galeria/files/vopumipar.pdfIn PDF document text
  • http://dtyxbpzx.com/filespath/files/20210914063605.pdfIn PDF document text
  • http://interfacetravels.com/app/webroot/js/ckfinder/userfiles/files/dakerubijanezike.pdfIn PDF document text
  • http://tv-sat.cz/userfiles/file/wegesanivobofodidati.pdfIn PDF document text
  • http://etpatatietpatata.com/userfiles/files/7100400921.pdfIn PDF document text
  • http://npi-management.org/ressource/site-image/files/58255624225.pdfIn PDF document text
  • https://cebrium.ssnn.ro/images/mitifedetagilise.pdfIn PDF document text
  • https://www.natursany.com/ckfinder/userfiles/files/silaloposikodakubiwufe.pdfIn PDF document text
  • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1614a027f21897---21575055833.pdfIn PDF document text
  • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f2bdcbf686---54022123222.pdfIn PDF document text
  • https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/622a0bdba9a62f9f9e69aa766ca439c5/vixaxokuvajaxutalarowis.pdfIn PDF document text
  • https://ardiinerkh.mn/uploads/userfiles/files/84893598454.pdfIn PDF document text
  • http://biblioteka-belzec.pl/upload/files/78783642368.pdfIn PDF document text
  • http://kaies.net/upfiles/210914015219026492nl69mj.pdfIn PDF document text
  • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e3d7b832e0---38153425839.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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