Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc63e384074256b5…

MALICIOUS

PDF

145.7 KB Created: 2021-03-24 13:59:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: a38c9be23713006471a34baa672ca4f4 SHA-1: 75e1b4981543919f29235d77e60a86892af02c2f SHA-256: fc63e384074256b5a182128f2958946ebe92d00276d4eba8901a90fe91a73c54
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a heuristic firing for an external URI pointing to a suspicious domain, and a machine learning classifier flagged it as malicious. The document body, though heavily obfuscated, appears to be a lure related to Mesoamerican cultures, likely intended to trick users into clicking the embedded malicious URL. No scripts were extracted, but the presence of an external URI and the ML classification strongly suggest a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9661

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://maypoin.ru/wix?keyword=caracteristicas+de+las+culturas+mesoamericanas+economicas PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4477913/normal_5fd247066d4fb.pdfIn PDF document text
    • https://cdn.sqhk.co/dopebuxoz/gi6ggjb/totosenogitesa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418973/normal_602fa723ef439.pdfIn PDF document text
    • https://cdn.sqhk.co/rifarako/ihaR5ji/10887110003.pdfIn PDF document text
    • https://cdn.sqhk.co/subogutaze/ggi8LFz/air_force_aim_high_t_shirt.pdfIn PDF document text
    • http://itasda.online/xitavobadilowuviridumutea3p.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388825/normal_60225248c99e0.pdfIn PDF document text
    • http://1xbet-regi.site/extreme_meme_music_megamashup7nla7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365586/normal_604463318daed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374686/normal_603d8b184cf2c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459027/normal_6035304628aa3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471455/normal_6015b4320dd85.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/context_clues_worksheets_for_grade_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cafc3dc-6561-4f5e-b20e-d332b97c1bab/81395234123.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/fomita.pdfIn PDF document text
    • https://s3.amazonaws.com/bivanud/divergent_3_allegiant_full_movie_in_hindi_download_300mb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9496ab27-2b8a-4960-96d1-b16e96896246/logitech_k800_wireless_keyboard_and_mouse_combo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8a366c8-6af2-4a84-9c8b-400b4863eceb/biboxejevipumuril.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c59eee99-4615-4ff0-8c27-7086c60bf57c/hp_deskjet_1512_scanner_software.pdfIn PDF document text

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