Malicious PDF — malware analysis report

Static analysis result for SHA-256 61b441599b12b505…

MALICIOUS

PDF

36.6 KB Created: 2021-06-06 08:32:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 15c3545cc12a357576f31dc8b082c75f SHA-1: 7a2bbc3a5a37568fd6ca2405b29e880180a90b3b SHA-256: 61b441599b12b505ca8debb44a54e4e562ca2cdce84f7812de4b4fa126c744ec
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 0.5746

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 36 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=physique+chimie+terminale+s+hachette+corrig%25C3%25A9+pdf PDF link annotation
    • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a4c13d17c75---wozowalinodabebu.pdfIn PDF document text
    • http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/160ac74ae1d254---dadulerire.pdfIn PDF document text

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