Malicious PDF — malware analysis report

Static analysis result for SHA-256 381edcf4a14ffabc…

MALICIOUS

PDF

111.6 KB Created: 2021-09-08 16:51:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 32328e8a5a430a6bd4b927c0c675e81d SHA-1: a5ad13982b19cb54d499c4aa52214787c93081ac SHA-256: 381edcf4a14ffabc933e37cbfcf74a18cf80274e6f40a8aac2b5140cf8a651f6
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV with a specific signature indicating phishing and trojan characteristics. It contains multiple embedded URLs, one of which is flagged as confirmed benign, but several others are unknown and potentially malicious. The PDF document body is heavily obfuscated, preventing a clear understanding of its direct content, but the presence of external URIs and the ClamAV detection strongly suggest a phishing or malware distribution attempt. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3990

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 http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1612f95774f340---80091297025.pdf In PDF document text
    • http://ordineveterinarivenezia.eu/userfiles/files/28653062469.pdfIn PDF document text
    • http://rentaruedas.com/files/others/wewexa.pdfIn PDF document text
    • http://arabic.cz/ckfinder/userfiles/files/3320689457.pdfIn PDF document text
    • http://fashioneducation.ru/userfiles/file/leniguwexebovofa.pdfIn PDF document text
    • http://dellalontra.it/userfiles/files/24949462655.pdfIn PDF document text
    • https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/161355a636d5ef---pisexufeje.pdfIn PDF document text
    • http://budohurtsa.pl/userfiles/fiIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=stolen+dance+piano+pdfPDF link annotation

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