Malicious PDF — malware analysis report

Static analysis result for SHA-256 259f152165b11c8d…

MALICIOUS

PDF

223.1 KB Created: 2020-10-27 12:33:43 +03:00 Authoring application: Laura Montgomery (via Emily Bishop)
MD5: 8d34540c4707a1b10c7220fb68b141a2 SHA-1: e2609d15b1f156ea4074d7bd738f6f97637bb8ae SHA-256: 259f152165b11c8d4dc6f2645288b36c4d2604601d036c8235f862b9cefd0b23
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF is identified as an image-only lure, a common tactic for phishing. It contains multiple external URIs, including http://no5jubd.b2u and http://h1sfnqk.sed.marjorierawlings.com, which are likely intended to redirect the user to a malicious site. The presence of a local builder path also suggests a crafted phishing document.

Machine Learning

  • Nyx PDF Classifier clean score 0.1188

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 223 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://no5jubd.b2u
    • http://h1sfnqk.sed.marjorierawlings.com

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