Malicious PDF — malware analysis report

Static analysis result for SHA-256 d14c0fda8609422b…

MALICIOUS

PDF

59.8 KB Created: 2021-09-01 13:29:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 6963105dc42a2820df15088375defe31 SHA-1: df90568b54152b0dcd214e9e2c0a73d308e388ba SHA-256: d14c0fda8609422b80a97e8bf0756e953c33ca6597e0d7eddad947cf7ab51662
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous external links, a common tactic for phishing or distributing malware. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a deliberate attempt to create a link farm on disposable hosting, suggesting malicious intent. ClamAV detection further confirms its malicious nature, identifying it as 'Pdf.Phishing.Trojan'. No scripts were extracted, but the document's structure and link distribution point towards a malicious lure.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4518

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
  • 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 https://almudenafernandez.co/ckfinder/userfiles/Files/17585760644.pdf In PDF document text
    • http://kondicionery-noginsk.ru/upload_picture/file/tonuxafezilivove.pdfIn PDF document text
    • http://es-hanasaki.com/yamituki-n/uploads/files/26110129375.pdfIn PDF document text
    • http://hifitness.hu/userfiles/file/tirutuvavatikakesaf.pdfIn PDF document text
    • https://hpx.com.ua/wp-content/plugins/super-forms/uploads/php/files/f93680d919f265cf41ff680f926dfdf0/49010313733.pdfIn PDF document text
    • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160e0d201af012---mepinukoporogin.pdfIn PDF document text
    • http://cityfate.com/files/files/41416232827.pdfIn PDF document text
    • https://nieruchomoscikomercyjne.co/files/file/34880748650.pdfIn PDF document text
    • http://bigband-ulm.de/userfiles/files/polexemotoxiwet.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=fast+and+furious+6+full+movie+online+123moviesPDF link annotation

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