Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4de836119babd06…

MALICIOUS

PDF

102.7 KB Created: 2021-08-03 19:52:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: c37c4076cdf0194b8ff503029176ade0 SHA-1: 2aa0d57221748c2af211cbd53edcb283a59923d4 SHA-256: b4de836119babd06c653e7869dfa4cf16c952de4f5bf38ce01e29772d8062411
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains embedded URLs that point to external resources, suggesting an attempt to redirect the user to malicious sites. While no scripts were explicitly extracted, the PDF format can embed JavaScript, which is often used to facilitate these redirects or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6857

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 http://posekatzahradu.cz/files/file/54542842862.pdf In PDF document text
    • https://shellserva.nl/docs/Image/file/11276655281.pdfIn PDF document text
    • http://www.skup.it/wp-content/plugins/formcraft/fiIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=dell+optiplex+780+memory+upgrade+not+workingPDF link annotation