Malicious PDF — malware analysis report

Static analysis result for SHA-256 64ce20937b56fba3…

MALICIOUS

PDF

35.9 KB Created: 2021-09-03 11:52:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 851401be48b4dca614b7bcae14beac77 SHA-1: 9ea29463d4510845953934413f24523a85561e48 SHA-256: 64ce20937b56fba36667da08887aaee56d4107ec70125ebaaf08e845bd0c3661
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF that employs an image-only lure, a common technique for phishing or malware distribution. It contains an embedded URI pointing to 'https://pixomot.ru/uplcv?utm_term=fundamental+english+grammar+third+edition+pdf', which is highly suspicious. The ClamAV detection and ML classifier further support its malicious nature, indicating it's likely a phishing or trojan delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7688

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 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://pixomot.ru/uplcv?utm_term=fundamental+english+grammar+third+edition+pdf PDF link annotation
    • https://callalilyvn.com/upload/files/58304887983.pdfIn PDF document text
    • https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/q40jpojnah7595hebaf32116bq/6In PDF document text

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