Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdd39f47f54911fa…

MALICIOUS

PDF

216.5 KB Created: 2021-05-21 07:42:57 +03:00 Authoring application: Andrew Gomez (via Mr. Dr. Donald Hunt) First seen: 2021-05-26
MD5: fbcf1357cc7144bfd5c685cf110d2d3d SHA-1: 07e4f040382f422fe233cc8aef1fbebf81a7ff75 SHA-256: cdd39f47f54911fa89d00b9b76364e6f0e1ffb2faeddc2ccc2d4012cd9d1ec50
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, a common technique for phishing or malware distribution. It contains an external URI pointing to 'zmn5nmh.michaelkomorn.com', which is likely the destination for a malicious payload or phishing page. The presence of a local builder path alongside the remote URI further suggests a crafted malicious document.

Machine Learning

  • Nyx PDF Classifier clean score 0.1932

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 216 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://zmn5nmh.michaelkomorn.com PDF link annotation

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