Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a4e4cb384729bbd…

MALICIOUS

PDF

252.0 KB Created: 2020-09-10 21:25:56 +03:00 Authoring application: Martin Harper (via Lawrence Rose) First seen: 2021-11-02
MD5: a5caad28229538339519a291cca98e4f SHA-1: 48da552d438d79101386cb0a1851dbfea3c92d7b SHA-256: 3a4e4cb384729bbd43108c164019da99018a97d3c7f9ac401c9d38c7c55eeaeb
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, a common tactic for phishing. It contains embedded URLs pointing to suspicious domains, suggesting an attempt to redirect the user to a malicious site. The presence of a local builder path alongside remote links further indicates its construction for malicious purposes.

Machine Learning

  • Nyx PDF Classifier clean score 0.1160

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 251 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://om8ahrg.mhn PDF link annotation
    • http://5ymgkb.dab.truthfortravellers.comIn PDF document text

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