Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed1ad5eee6685cc9…

MALICIOUS

PDF

63.7 KB Created: 2021-05-19 18:34:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a930dc990758bfd1b01b4bee7e140ec SHA-1: 4fd771074d76b04845b0131a3c3ef3b360809d34 SHA-256: ed1ad5eee6685cc9d189fd1ebb1f378796f49d20f433c85583cb2d257433b7c0
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are hosted on compromised CMS upload directories, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with phishing or malware distribution campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7133

Heuristics 5

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://mp-journal.com/media/file/95753674691.pdf
    • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609af572336e7---23288822403.pdf
    • https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/694f4e6eeefc2b60e9da8919c3fe4090/99718822188.pdf
    • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16079639fe816f---71543233998.pdf
    • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/160807838a6475---11925030725.pdf
    • https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d279f75554---46410446288.pdf
    • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2dfce8204a---32760913982.pdf
    • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607d393ec22c8---tasaditudaw.pdf
    • http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160737c015aede---73772475667.pdf
    • https://www.beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/c069047311402f42bc619e934af29a64/tozulusomopisakafeledak.pdf
    • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079e0e113f2b---kumab.pdf
    • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/160a141c4df21d---96778785303.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=what+are+3+adaptations+of+animals

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