Malicious PDF — malware analysis report

Static analysis result for SHA-256 90eb97ca433f9041…

MALICIOUS

PDF

35.9 KB Created: 2021-06-06 23:48:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 4d881146c7fa2d35b4a5ef99c6e5e02e SHA-1: 472ec9e012fdfcc0d2d97805f6626caf4b32ca2b SHA-256: 90eb97ca433f90417d793e3f0490e1b2c208d1a617ce7396eea1c9706a406684
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. It employs a common phishing lure technique, presenting as an image-only document with a clickable action to disguise a malicious link. The embedded URL points to a suspicious domain, suggesting the document's purpose is to redirect users to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6891

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 35 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://coretry.ru/uplcv?utm_term=livro+energia+solar+fotovoltaica+conceitos+e+aplica%25C3%25A7%25C3%25B5es+pdf PDF link annotation
    • https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/4912276bdb097c17d5587022bd3a8056/rumulinarusitag.pdfIn PDF document text

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