Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a01076f5f9de2c3…

MALICIOUS

PDF

37.2 KB Created: 2021-07-16 01:15:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 6854cb640a4b9e96238024b9d2e47217 SHA-1: c889d7708d95e76379dc05521b2e60b811f6cdf0 SHA-256: 4a01076f5f9de2c35eea8d8c3eb02c01a2e63633d044a76fdd8cb8ef1accfe60
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript and is flagged by ML classifiers and ClamAV as malicious. The 'PDF_IMAGE_LURE' heuristic indicates it's designed as a phishing document, likely redirecting users to a malicious URL via a hidden clickable element. The embedded JavaScript further supports malicious intent, potentially for exploitation or payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6864

Heuristics 5

  • 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 37 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://luminex.pl/upload/file/37538362407.pdf In PDF document text
    • http://bbgannualseminar.com/clients/6/60/607ac775fa755cf068047886b2bbe24d/File/difubunewezexaxogetoju.pdfIn PDF document text
    • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073a37458553---79008926887.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/fpfn1p975vq3g5vjk2dobgmu0m/60755134849.pdfIn PDF document text
    • http://www.stsmcc.org/www/js/ckfinder/userfiles/files/5580487070.pdfIn PDF document text
    • http://buchtel1967.com/clients/26382/File/29341717113.pdfIn PDF document text
    • https://bbpartner.cz/userfiles/file/finepinoxabawep.pdfIn PDF document text
    • http://www.gunyagder.orgIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=lunch+sign+up+sheetPDF link annotation

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