Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://smidgel.ru/uplcv?utm_term=brain+challenge+4+apk PDF link annotation

  • https://taevlingar.se/images/pages/file/80708569373.pdfIn PDF document text
  • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/161394f01e4486---58607941560.pdfIn PDF document text
  • http://synfarm.com/upload/files/ximajegetufanupumuromese.pdfIn PDF document text
  • http://kamennykoberec.eu/editor_uploads/system/files/tifabunuxegogumodidarep.pdfIn PDF document text
  • http://mopron.ru/upload/files/wirivofetiwiz.pdfIn PDF document text
  • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/161393e4a0bfe7---79246788996.pdfIn PDF document text
  • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/d7aa67e92e07c532bace02e29f6c6529/67680353199.pdfIn PDF document text
  • http://nassagroup.org/app/webroot/js/ckfinder/userfiles/files/laduxufigojebipim.pdfIn PDF document text
  • https://stef-nancy.fr/upload/document/74373532563.pdfIn PDF document text
  • http://logiccpacma.com/ckfinder/userfiles/files/saxox.pdfIn PDF document text
  • https://satesayap.com/contents/files/moxigimovifumafenipodek.pdfIn PDF document text
  • http://grapes4u.ca/sites/all/sites/grapes4u.ca/files/xajote.pdfIn PDF document text
  • http://sirindhorn.net/upload/File/wazogago.pdfIn PDF document text
  • http://ladna.pl/user_images/file/togujobamowojam.pdfIn PDF document text
  • http://labsshop.com/d/files/97460552805.pdfIn PDF document text
  • https://proia.bg/userfiles/file/misotalolevosozobajur.pdfIn PDF document text
  • http://geoass.eu/userfiles/files/fizisofavemugojipes.pdfIn PDF document text
  • https://shiprapublication.com/uniformkontakt/userfiles/image/files/80895702294.pdfIn PDF document text
  • http://anhuifan.com/upload_fck/file/2021-9-6/20210906183158893075.pdfIn PDF document text
  • http://ekopaczka.pl/imgbrama/files/mubepozike.pdfIn PDF document text
  • https://akproauto.com/nbloom/fckuploads/file/8746935601.pdfIn PDF document text
  • https://anjingliar2.com/contents/files/41750433327.pdfIn PDF document text
  • https://asiastudy.in/ckfinder/userfiles/files/befibaxalujigifusixep.pdfIn PDF document text
  • http://phupmirpol.pl/userfiles/file/63459324116.pdfIn PDF document text
  • https://sanaspinler.net/calisma2/files/uploads/neguxesow.pdfIn PDF document text
  • http://drapikowski.pl/uploaded/fck_files/file/vovefefizuwoxuzejugexizaj.pdfIn PDF document text
  • http://sirindhorn.net/upload/File/xovugebilirodoxa.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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