Malicious PDF — malware analysis report

Static analysis result for SHA-256 56174f4eab2fa3fd…

MALICIOUS

PDF

41.6 KB Created: 2021-01-25 21:35:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2ddcc34b0848c462cb4ca4463172aeb7 SHA-1: c6fe40d5a0d3b47ab1d231a0b140ca261300a04c SHA-256: 56174f4eab2fa3fd28829fdcad42d3d70c4477b02155ad93cf27d71a2dfaea70
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as malicious by ClamAV and an ML classifier, and exhibits characteristics of a phishing lure. It contains a single image, typical of a screenshot designed to hide a clickable action. The embedded URL, https://jottigo.ru/aws?utm_term=win+10+update+2019, is likely used to deliver a malicious payload or redirect to a phishing site. No scripts were extracted, but the PDF structure and heuristics strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8258

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 41 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://jottigo.ru/aws?utm_term=win+10+update+2019
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