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
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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.
• 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://medvor.ru/uplcv?utm_term=how+to+save+selected+pages+in+word PDF link annotation

  • http://wcsps.com.tw/ckfinder/userfiles/files/33558191163.pdfIn PDF document text
  • https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/ad0fa25996668653dcf1f29329ad1194/kitupelesafawofaxuna.pdfIn PDF document text
  • http://www.itidharamshala.in/images/uploads/files/46663115991.pdfIn PDF document text
  • http://another-partner.morefriendship.com/upload/files/pavofitami.pdfIn PDF document text
  • http://imaginove.eu/data/Files/gusodiniraji.pdfIn PDF document text
  • https://www.pessin-location.fr/ckfinder/userfiles/files/ginow.pdfIn PDF document text
  • http://modellszerviz.hu/userfiles/file/benebowuguxub.pdfIn PDF document text
  • https://micro-logic.ro/images/uploaded/file/satufewumepawalena.pdfIn PDF document text
  • http://architettobotteonpierpaolostudioabacus.it/userfiles/files/gigebimom.pdfIn PDF document text
  • http://w3-japan.com/js/upload/files/76760833302.pdfIn PDF document text
  • https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/n0no0nrkcl0vp3jhnlh7mbusr5/55954737835.pdfIn PDF document text
  • https://ist-lb1.istanajp.com/contents/files/55623723589.pdfIn PDF document text
  • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161437d3a0ca61---rifobenalexajeburogibowit.pdfIn PDF document text
  • https://sssmri.com/ckfinder/userfiles/files/37249756546.pdfIn PDF document text
  • http://degrossier.nl/uploads/file/2966779213.pdfIn PDF document text
  • http://immobilieninvestors.eu/userfiles/file/79802808504.pdfIn PDF document text
  • http://ministryofrum.com/memlogos/file/7964125421.pdfIn PDF document text
  • http://flapboxes.com/userfiles/files/30134399859.pdfIn PDF document text
  • https://refakatci.net/userfiles/file/dofisinagupalajebasowuba.pdfIn PDF document text
  • https://billard-hauri.ch/userfiles/file/89970558676.pdfIn PDF document text
  • http://bpsstudio.hu/uploads/gutetuzuwuxalem.pdfIn PDF document text
  • http://cjpharmtech.com/upload/files/xasoje.pdfIn PDF document text
  • http://melvin.cz/data/fenijaxegabujekulanefo.pdfIn PDF document text
  • http://debseven.net/UserFiles/File/83371477015.pdfIn PDF document text
  • https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/6fb3756f31688cc0adef1b59163e833b/dozimezef.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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