Malicious PDF — malware analysis report

Static analysis result for SHA-256 19001dd441e50233…

MALICIOUS

PDF

145.0 KB Created: 2024-07-20 11:35:24 +03:30 Authoring application: Microsoft® Word LTSC
MD5: 22e9135a650cd674eb330cbb4a7329c3 SHA-1: cdfa4966d7a859b09a411f0d90efbf822b2d6671 SHA-256: 19001dd441e50233d7f0addb4fcd405a70ac3d5e310ff20b331d6f1a29c634f0
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a direct link to a ZIP archive, identified by the PDF_DIRECT_PAYLOAD_LINK heuristic. This suggests an attempt to trick the user into downloading a malicious payload, likely disguised as a software update or support file. The embedded URL points to a file named 'update.zip' within a 'crowdstrikesupport' directory, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier clean score 0.0001

Heuristics 2

  • PDF link points directly to executable/archive payload critical PDF_DIRECT_PAYLOAD_LINK
    PDF contains a clickable HTTP(S) URI whose path ends in an executable, script, shortcut, disk image, or archive extension. Documents can legitimately link to installers, so this is a high-risk delivery indicator rather than a standalone exploit fingerprint.
  • 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 https://link.storjshare.io/s/jvktcsf5ypoak5aucs6fn6noqgga/crowdstrikesupport/update.zip?download=1
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/pdf/1.3/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/

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