Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff39d5af84fc9183…

MALICIOUS

PDF

136.2 KB Created: 2020-10-27 12:31:58 +03:00 Authoring application: Terry Bell (via Lawrence Morales)
MD5: ad83e9f9fbfe1c8fedb877c36754b513 SHA-1: 1b633c6d4d08cbc34d0f9429494d92b0ce11ff64 SHA-256: ff39d5af84fc91832a031e60e75062759ac6837163fb9952d5bb5c78a133ea1d
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF is identified as an image-only lure, typical for phishing attacks. It contains external URIs pointing to malicious domains, suggesting it's designed to redirect users to a compromised website. The presence of a local builder path in conjunction with remote links further supports this. No scripts were extracted, but the overall structure and embedded URLs indicate a phishing attempt.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2723

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 136 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://8h1bgu6.e2a
    • http://3rel9uo.sed.ojjdp.com

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