Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b131d280b56010c…

MALICIOUS

PDF

37.1 KB Created: 2021-10-01 00:12:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: f6b797913e66b104d0fca104b7642aa8 SHA-1: 0ec1e57f18407d4a2e388f3a3930f70150d160f0 SHA-256: 9b131d280b56010c47c2c8456174710839c11199a08202af85ebf9809a3cb447
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, typical for phishing attacks, designed to trick users into clicking embedded links. ClamAV and ML classifiers also flagged this PDF as malicious. While no scripts were extracted, the presence of multiple unknown URLs suggests a potential download or redirection to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7016

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 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.
  • 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://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/f318a535e920ea42db2872b5491bcef4/21178614883.pdf In PDF document text
    • https://southernwashpros.com/nbloom/fckuploads/file/92500957331.pdfIn PDF document text
    • https://songhongresort.com/img/files/35057049014.pdfIn PDF document text
    • http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614bc0b6a4448---subelagizovakofoz.pdfIn PDF document text
    • http://chapraptti.org/userfiles/file/tokosutekawawibefeg.pdfIn PDF document text
    • http://buyyoutubecomments.com/ci/userfiles/files/wanux.pdfIn PDF document text
    • http://phutungquanghieu.com/app/webroot/files/ckfindIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=episode+choose+your+story+hack+toolPDF link annotation

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