Malicious PDF — malware analysis report

Static analysis result for SHA-256 635918880914db53…

MALICIOUS

PDF

49.0 KB Created: 2021-03-10 14:01:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b009dbc999e386fb1af657afe6bdd58c SHA-1: abe1e3aa6138ac4808f5b474de8d9527970fc8cc SHA-256: 635918880914db53dcaee239dc334c06d1c0936c28fa587e33e102b48efdf2fc
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 embedded clickable link. The heuristic PDF_IMAGE_LURE indicates a common phishing tactic where a screenshot is used to hide an action trigger. The embedded URL, https://jottigo.ru/award?keyword=benzodiazepinas+definicion+pdf, is likely used to redirect the user to a malicious site for credential harvesting or further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6121

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 48 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=benzodiazepinas+definicion+pdf

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