Malicious PDF — malware analysis report

Static analysis result for SHA-256 50a606449c974f8a…

MALICIOUS

PDF

36.7 KB Created: 2021-04-01 06:00:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aefa5a980077cc2dac92b9f8619327cb SHA-1: 03148b6e67eb4a29e3f42e17c088094a763fb191 SHA-256: 50a606449c974f8a9db6b07ac86c7cb800c959a1a9938fb29f956a3983bc6659
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-heavy nature and embedded clickable link. The heuristic 'PDF_IMAGE_LURE' indicates a typical phishing shape where a screenshot hides an attacker-controlled URL. The embedded URL 'https://crophysi.ru/award?keyword=slope+intercept+form+problems+pdf' is the primary indicator of malicious intent, likely leading to a phishing page or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6110

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://crophysi.ru/award?keyword=slope+intercept+form+problems+pdf
    • http://juborad.mywebcommunity.org/electronic_structure_theory.pdf
    • https://uploads.strikinglycdn.com/files/9d2451af-ad7b-4d86-be9c-f7f6b4634db6/67560752609.pdf
    • https://uploads.strikinglycdn.com/files/6b315a42-b37e-4fe2-94b0-205876eb9bfd/seiko_solar_watch_battery_replacement_near_me.pdf
    • https://uploads.strikinglycdn.com/files/ac187844-c0d0-4f0e-af74-66153180bd0d/starship_troopers_book_plot.pdf
    • https://9e730ba1-499c-413e-9a09-8a81f8121270.filesusr.com/ugd/0a0016_1a57c32b0e164d4298c81efde99100c3.pdf?index=true

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