Malicious PDF — malware analysis report

Static analysis result for SHA-256 b372157f95683841…

MALICIOUS

PDF

90.1 KB Created: 2021-04-03 06:11:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bbfde20f46b27a3b28e1c4f83a6f9ae1 SHA-1: 0e01c5195d3138ae1d4d18fbb531ea8c15a5bf66 SHA-256: b372157f956838415f3f098f12275900382f7479fe1e61b8ddb23c71ebdbcc9a
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-only nature and a clickable action. The embedded URL, https://jottigo.ru/award?keyword=understanding+life+science+grade+12+caps+pdf, is likely used to deliver a malicious payload or redirect to a phishing site. ClamAV detection and ML classification further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7510

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 90 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/award?keyword=understanding+life+science+grade+12+caps+pdf

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