Malicious PDF — malware analysis report

Static analysis result for SHA-256 b91e1afa4c207783…

MALICIOUS

PDF

36.4 KB Created: 2021-07-15 19:04:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-02
MD5: a471df03d29abab42cb02149af7268f2 SHA-1: 23741a8c5f0bfe8ab8ebf36957abdbf795106c53 SHA-256: b91e1afa4c207783e5d0e45cf9ddd4919cbb0e7c0ddba5b9496978c37fd0d03a
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was identified as malicious by ClamAV and an ML classifier, and it exhibits characteristics of a phishing lure. The document is image-only with a clickable action, typical for directing users to malicious URLs. Several unknown reputation URLs were extracted, suggesting potential download or phishing destinations.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7100

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/16091c6ecdb336---wijatosedadepogawewobet.pdf In PDF document text
    • http://playfromhome.org/clients/4/49/49939bf6a151252ba1adfe53d1befa29/File/7885624938.pdfIn PDF document text
    • https://angkaganjil.com/contents//files/21459593497.pdfIn PDF document text
    • https://paklya.su/design/img/upload/file/30367329038.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=law+and+order+svu+transitions+castPDF link annotation

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