Malicious PDF — malware analysis report

Static analysis result for SHA-256 f76b495d960c3536…

MALICIOUS

PDF

81.8 KB Created: 2021-08-03 22:04:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: be827c4a9249661b7615711e9779f3d3 SHA-1: a5f775345438bc2e516924da4df3f0f768d6309f SHA-256: f76b495d960c353699385b042a79e959855ddfdf2feb1dad5fee91ad8a173609
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ML classifiers and ClamAV, with a specific detection signature indicating it is a PDF phishing trojan. An external URI was extracted, pointing to a URL that, while currently classified as benign, is likely part of the attack chain. No scripts were extracted, limiting the analysis of the execution flow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6016

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/~3/1xuhb7AK25c/uplcv?utm_term=ejercicios+de+lenguaje+algebraico+en+la+vida+cotidiana PDF link annotation

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