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
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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://laborke.ru/uplcv?utm_term=leave+request+form+template+excel PDF link annotation

  • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160cc7dd5eaf11---tesulupavu.pdfIn PDF document text
  • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160e6bb967f5ad---veguwumawuvot.pdfIn PDF document text
  • https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/95956a803a7afcaea02b13dd78d4138f/93029484771.pdfIn PDF document text
  • https://hchoanglong.vn/userfiles/file/696544918.pdfIn PDF document text
  • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/52fu35fb4aldu38aki1tdggo3j/4388974303.pdfIn PDF document text
  • https://otelnamore.com/wp-content/plugins/super-forms/uploads/php/files/0694d7a41f0cef922a55ebad43ec362f/87277447732.pdfIn PDF document text
  • http://kevinmcallisterlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/22843387290.pdfIn PDF document text
  • https://ive-cal.it/file/5521814092.pdfIn PDF document text
  • https://menu2uplus.com/images/file/996847961.pdfIn PDF document text
  • http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607aadb961a27---37661291305.pdfIn PDF document text
  • http://timandlor.com/userfiles/file/talolotelolajemisoxemezij.pdfIn PDF document text
  • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/c1e9je63ovll9ah4lnh6uudefe/74971713796.pdfIn PDF document text
  • https://argumentua.com/i/file/zupitu.pdfIn PDF document text
  • https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb4c727276---minosizadeko.pdfIn PDF document text
  • https://doanhnghiepvietnam.org/img_duhoc/files/56862934821.pdfIn PDF document text
  • http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160bde2e0ac14b---53279977530.pdfIn PDF document text
  • http://studiofantino.it/userfiles/files/13426812513.pdfIn PDF document text
  • https://styliststudios.com/imagesTE/file/ladudaloxavepegajuzip.pdfIn PDF document text
  • http://caphegiabao.com/upload/fck/file/49186790243.pdfIn PDF document text
  • http://alhouti.com/userfiles/file/83963595646.pdfIn PDF document text
  • http://geose.ru/userfiles/file/45642696697.pdfIn PDF document text
  • http://ahsaipu.com/v15/Upload/file/2021572049309563.pdfIn PDF document text
  • https://betentour.com/sites/default/files/file/54642312889.pdfIn PDF document text
  • http://szsahsh.com/uploads/files/xejiwubutoxeket.pdfIn PDF document text
  • https://clumba-indoor.ru/files/files/tunobunipib.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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