Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3a1044459a67b3b…

MALICIOUS

PDF

35.9 KB Created: 2021-09-07 09:32:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-04
MD5: ca51cb85b577cbe2536c9db16e4463b3 SHA-1: 2e349874bb9febe27a3abaacde51ff068104b2ee SHA-256: f3a1044459a67b3b55ec7197c13b836bd2a8eeedc92f69b56c88f150cc717d2f
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7200

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://philabc.ru/uplcv?utm_term=libro+modernist+cuisine+en+espa%C3%B1ol+pdf PDF link annotation
    • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba7eed569fa---84035088346.pdfIn PDF document text
    • http://bangdientunhk.com/upload/files/peneje.pdfIn PDF document text
    • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/47f4e52b7542262e0821925e85afe9d8/variruvap.pdfIn PDF document text

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