Malicious PDF — malware analysis report

Static analysis result for SHA-256 99fcee4fc4b7e55f…

MALICIOUS

PDF

65.1 KB Created: 2021-08-21 01:24:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: dcf6e0cdc16c05ff48cc9eae6f252542 SHA-1: 11e610ca72c672e6b0898667403b7b41a2492cc6 SHA-256: 99fcee4fc4b7e55f7d6dc4c9ef299ecd575f0039ce1b8ca070681ac6cd7e1749
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as a malicious PDF by ClamAV and an ML classifier. It contains an embedded URI pointing to an external URL, which is a common tactic for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and heuristic firings suggest an attempt to redirect the user to a malicious resource, likely as part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5002

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://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=classical+dynamics+of+particles+and+systems+%285th+edition%29-+solutions+manual+-+marion+%26+thornton PDF link annotation

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