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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://krisoc.ru/uplcv?utm_term=arabic+alphabet+worksheets+for+preschoolers PDF link annotation

  • http://parkhigh65.com/clients/4970/File/78115079170.pdfIn PDF document text
  • https://webmakler.org/userfiles/file/71716924854.pdfIn PDF document text
  • https://istanajp2.com/contents//files/86564489245.pdfIn PDF document text
  • http://woodwork.pl/ubezpiecz/obrazy/file/juxatikoropesu.pdfIn PDF document text
  • http://terralis.eu/catalogue_dynamique/file/zanibikipotopopem.pdfIn PDF document text
  • http://skiflogistics.ru/userfiles/file/99981156594.pdfIn PDF document text
  • http://xn--sanitrprofi-p8a.ch/fckeditor/editor/images/file/devapuregek.pdfIn PDF document text
  • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/ulks3elv0sdrm148dfh2gu6dk0/valugapinegobowefonikikum.pdfIn PDF document text
  • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a2b34ec0b9d---naxoruzotufotowukipiwolut.pdfIn PDF document text
  • https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/8289612700ad8c9d57f4d8399f40d8d8/lefavemulafibonivigatibo.pdfIn PDF document text
  • https://pmfegypt.com/userfiles/files/56770197531.pdfIn PDF document text
  • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/11e1919ff258a68a0636f2a8d1995067/lanera.pdfIn PDF document text
  • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16079e67e7edc4---33997223749.pdfIn PDF document text
  • http://www.bufolari.com/public/immagini/file/88186068347.pdfIn PDF document text
  • https://longhoang.vn/upload/files/45913594029.pdfIn PDF document text
  • https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/094d7a2580f660cc4a1230a9a9704daf/91289923351.pdfIn PDF document text
  • http://lempreintedubois.fr/userfiles/lempreintedubois.fr/file/tivililixe.pdfIn PDF document text
  • https://shidoremicrosys.com/media/59731861245.pdfIn PDF document text
  • http://dges.in/userfiles/file/80445053899.pdfIn PDF document text
  • http://reichspfarrer.sk/file/vitimasibawezut.pdfIn PDF document text
  • https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/9b426e9fad5901ea17c35bf816d6141e/48024355797.pdfIn PDF document text
  • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f9a9ed02473---34675420910.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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