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
• Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://smidgel.ru/uplcv?utm_term=is+ring+video+doorbell+worth+it.
• 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.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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://smidgel.ru/uplcv?utm_term=is+ring+video+doorbell+worth+it PDF link annotation

  • http://aquatherm-graz.at/files/71697320554.pdfIn PDF document text
  • https://gastriklandsbf.se/UserFiles/files/fenozijaluzeruseru.pdfIn PDF document text
  • http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1607f9499491bf---48904686183.pdfIn PDF document text
  • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b9136dce303---velebudumitarixevu.pdfIn PDF document text
  • http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/dad45a6af3682df7fe7e61c060e951bc/31860998635.pdfIn PDF document text
  • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609eb18dba9b8---jaregazil.pdfIn PDF document text
  • http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16071748844dd2---lukowisukemafavipuga.pdfIn PDF document text
  • http://rideco.hu/upload/file/82326493580.pdfIn PDF document text
  • https://sieuthimaytinhcu.vn/upload/files/54977719335.pdfIn PDF document text
  • http://brooklynsmokeshops.com/admin/images/file/60513918712.pdfIn PDF document text
  • http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/160786f321b226---94573930751.pdfIn PDF document text
  • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/k3k6auarqfnbjcjg7kliefs362/mazatunive.pdfIn PDF document text
  • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/21cd2e64cd759d0a752e4a714f327d61/fipugadazesubax.pdfIn PDF document text
  • http://www.alcera.ca/userfiles/file/kejewawolam.pdfIn PDF document text
  • https://tims.ro/ckfinder/userfiles/files/2601645476.pdfIn PDF document text
  • https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/89c885f20513cd0d81a5f936a94cba32/fumuligobalep.pdfIn PDF document text
  • https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/160a440d67cc40---88967666605.pdfIn PDF document text
  • https://sjalikave.hu/pictures/file/31194045866.pdfIn PDF document text
  • http://tuttotop.com/userfiles/files/sipun.pdfIn PDF document text
  • http://medicare-darmstadt.de/bilder/UserImages/file/wazololimukuwemugevutuput.pdfIn PDF document text
  • http://akinmedikal.com/uploads/file/26315384328.pdfIn PDF document text
  • https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/fb32d7e789a943220073e7b920c8b87e/96261454338.pdfIn PDF document text
  • https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083700def7c5---jiduxukuvatikuxubapal.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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