Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d1221584751c96…

MALICIOUS

PDF

85.3 KB Created: 2021-07-06 21:44:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 0dda3965c349652435cda16f9f4475bd SHA-1: f92229bcd37348b749296470c0e8bf4332ea0a40 SHA-256: c5d1221584751c96e8d7971dc430c29d0c41c25cdbf97c7dc3df4eeb2820e2e1
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://nomylo.ru/uplcv?utm_term=equanimity+of+mind PDF link annotation
    • https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/b21477d944e2694454d39ace96b5fe32/fukutatitunozanojeram.pdfIn PDF document text
    • http://slsnn.ru/content/files/89850833449.pdfIn PDF document text
    • http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609c85ffa1ff5---goridavodig.pdfIn PDF document text
    • http://dyglas.com/userData/board/file/pojirosajido.pdfIn PDF document text
    • http://ixtvs.de/_upload_bilder/_filemanager/file/lofafitadunep.pdfIn PDF document text
    • https://ajwatravel.com/wheelmarine/userfiles/file/wasimavozuwidubomuberip.pdfIn PDF document text
    • http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aab007d4f2f---65175031098.pdfIn PDF document text
    • http://goldenrulelodge24.com/clients/860883/File/xolideribelinixo.pdfIn PDF document text
    • http://vytvarnyobchod.cz/UserFiles/File/bibomalepotozukokeg.pdfIn PDF document text
    • https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/9722690ca3a5b1c17c74f242e4036656/vitafamunijowatunugefo.pdfIn PDF document text
    • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/6885084f4967a3dc1576007fae1ad57c/xizanimimax.pdfIn PDF document text
    • http://technocom.pl/editor/file/84337163590.pdfIn PDF document text
    • https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/0c40349601e631e1ea989b46b9b72606/18879421704.pdfIn PDF document text
    • http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5797a81f03---26109844892.pdfIn PDF document text
    • http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c580b31e1cd---14732746250.pdfIn PDF document text
    • http://color-gateway.com/userfiles/file/66452173415.pdfIn PDF document text
    • http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606cba67cfd7b---tenosu.pdfIn PDF document text
    • http://kinogigant.com/sadm_files/67974564510.pdfIn PDF document text
    • https://gmnavarra.es/ckeditor/files/12252617226.pdfIn PDF document text
    • https://cashcruis.ru/wp-content/plugins/super-forms/uploads/php/files/884c2f1d3685f36f22a64891190fa4fa/18369074700.pdfIn PDF document text
    • http://bulk-supplies.com/userfiles/file/83551519428.pdfIn PDF document text
    • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160be294b3406e---77656725320.pdfIn PDF document text
    • http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/160d51b6c35f3c---639526653.pdfIn PDF document text
    • https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/f4354bb4c22b973ecad0494857345786/28490486190.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC92 10412 bytes
SHA-256: 57ed2bf02e061c22ea6f166dd21f9ba188c0b69d4c7e3be3b508febae97cae89
font_01_sfnt_off000103e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103E2 17024 bytes
SHA-256: e90ba9a6cadd35a0622d267225d017828644a5ce8cc362ef40b1ff204765f397
font_02_sfnt_off00013037.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13037 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1