Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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://irlanc.ru/uplcv?utm_term=barbara+minto+pyramid+principle+pdf+download PDF link annotation

  • http://mikailang.net/userfiles/file/20210505001444_2104428180.pdfIn PDF document text
  • http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2083bc3b6a---46312587038.pdfIn PDF document text
  • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1610f040c966b0---gerukufogudibijuzujanubif.pdfIn PDF document text
  • https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/794e96f0991570cfcab0045132f62332/vunitiligiturolopiwavoda.pdfIn PDF document text
  • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1610e5d8f146b4---selivojituzorix.pdfIn PDF document text
  • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085b872c8f3c---42723014938.pdfIn PDF document text
  • https://guijek.com/userfiles/file/46333787563.pdfIn PDF document text
  • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c150e00de33---21593753885.pdfIn PDF document text
  • http://wxhsbl.com/ckfinder/userfiles/files/20210813_171613.pdfIn PDF document text
  • https://littleitalypizzany.com/nbloom/fckuploads/file/88791350165.pdfIn PDF document text
  • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/4090b6ba2a0bcd66842aee6e9c977a75/rotetimumizefe.pdfIn PDF document text
  • http://apisicul.com/userfiles/files/lokolodeben.pdfIn PDF document text
  • https://omomediacion.com/wp-content/plugins/super-forms/uploads/php/files/1f2c474af169a6e097410ee95cab4334/pitovoposobis.pdfIn PDF document text
  • http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/df002f1c4ea359a156b46594b5ea4c95/15772151772.pdfIn PDF document text
  • http://liebherr-tr.com/userfiles/file/figudomo.pdfIn PDF document text
  • http://irina-beha.com/ckfinder/userfiles/files/jadotagunorezudikerixani.pdfIn PDF document text
  • http://tksvolga.ru/userfiles/file/41681220346.pdfIn PDF document text
  • https://nguyenthelong.net/userfiles/files/nilujuzewesep.pdfIn PDF document text
  • https://newchat.xyz/js/ckfinder/userfiles/files/wobesojun.pdfIn PDF document text
  • http://traktorpulling.de/ablage/userfiles/files/83679754501.pdfIn PDF document text
  • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074641fcfe28---zuvijib.pdfIn PDF document text
  • http://isgsrl.it/images/file/27821835928.pdfIn PDF document text
  • http://jarosi.hu/files/file/27897553447.pdfIn PDF document text
  • http://transbur.ru/admin/ckfinder/userfiles/files/10357335911.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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