Malicious PDF — malware analysis report

Static analysis result for SHA-256 cba1426644536b0b…

MALICIOUS

PDF

62.3 KB Created: 2021-09-18 14:45:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: d19619c7182476046e038eb872b3ab1f SHA-1: 45b0db567de23d9cd77575fd5a13f0dd67ba3b7c SHA-256: cba1426644536b0bf8a104dc5db47ecb19309f0fad23da83e5d82d3a86ea6e4a
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to a suspicious domain, likely serving as a lure for phishing or malware distribution. No scripts were extracted, but the presence of multiple embedded URLs suggests an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6804

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://queure.ru/uplcv?utm_term=applicazioni+per+scaricare+musica+gratis+da+android PDF link annotation
    • http://tianfonmm.com/d/files/89337100672.pdfIn PDF document text
    • https://morganmethod.tuesdaytrader.com/ci/userfiles/files/7047016804.pdfIn PDF document text
    • https://tssch.in/tssch/application/admin/uploads/file/94001373289.pdfIn PDF document text
    • http://lrm.mcdonalds.ua/ckfinder/userfiles/files/57021840592.pdfIn PDF document text
    • https://lmetinternationalschool.in/ckeditor/ckfinder/userfiles/files/daxixupasosovujewixido.pdfIn PDF document text
    • http://tourister.kr/userfiles/file/41276306066.pdfIn PDF document text
    • https://thehouseproduction.net/file/86663236662.pdfIn PDF document text
    • http://mclarenquartz.in/ci/userfiles/files/nixejidarisogi.pdfIn PDF document text
    • https://reklama71.ru/upload_picture/pijipafewera.pdfIn PDF document text

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