Malicious PDF — malware analysis report

Static analysis result for SHA-256 d83adbdbba9184c5…

MALICIOUS

PDF

142.9 KB Created: 2021-06-02 21:44:24 +03:00 Authoring application: Kathryn Webb (via Mr. Dr. Joseph Patterson) First seen: 2021-06-17
MD5: 107fa78b6a2ba4daf9c18b442c5a17fe SHA-1: 512ea43c913332ef4ddbdace2d5fd326be6d8d66 SHA-256: d83adbdbba9184c56626aa03159872eb57eb65f69cae9bc81aa27cc6927cc5d0
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is an image-only lure, typical of phishing attacks, designed to trick users into clicking an embedded link. The heuristic firings indicate the document contains a clickable action that directs to the URL http://vbitzv8.cimaglermin.com. The presence of a local builder path alongside the remote URI suggests a crafted phishing document.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4111

Heuristics 4

  • Image-only PDF carries local builder path plus remote links high PDF_IMAGE_LURE_LOCAL_FILE_AND_REMOTE_URI
    PDF is an image-only click lure that contains both remote HTTP(S) destinations and a file:/// URI exposing a local Windows/Linux builder path. That co-occurrence is not normal document linking; it matches generated clickbait/phishing carriers where the visible page is a screenshot and the clickable area sends the user to external infrastructure.
  • 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 142 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://vbitzv8.cimaglermin.com PDF link annotation

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