Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b24de890a675ae2…

MALICIOUS

PDF

62.4 KB Created: 2021-08-14 13:18:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-21
MD5: 9b1a7add67a137a28f537fdd55c0b327 SHA-1: f1fd48d143fefff7f2dfe23c4be6150f5d1a692e SHA-256: 9b24de890a675ae2f05f389298f7061814bdcf3c872cf904972a2ca474c543c3
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV and contains multiple embedded URLs pointing to potentially compromised WordPress upload directories. The PDF structure suggests it's designed to host a link farm, directing users to various external sites, some of which are hosted on known compromised CMS platforms. No scripts were extracted, but the presence of embedded URLs and the ClamAV detection strongly indicate a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3909

Heuristics 4

  • 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.
  • 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://baugeraeteverleih.de/benutzerdateien/40754756515.pdf In PDF document text
    • https://namlongadc.vn/uploads/news/files/86353124625.pdfIn PDF document text
    • http://tkhomedeco.com/assets/uploads/ckedit/files/20210626035654.pdfIn PDF document text
    • https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/8qb2biv3skt8qvc081evqq7d24/95048135649.pdfIn PDF document text
    • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/160871b55a5595---58490327459.pdfIn PDF document text
    • http://longchimvac.net/app/webroot/uploads/files/vemebi.pdfIn PDF document text
    • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c5e4a64e30e---37980325372.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=fichas+lectoescritura+6+a%C3%B1os+letrilandia+pdfPDF link annotation

Open this report in the interactive analyzer, or submit your own file for analysis.