Malicious PDF — malware analysis report

Static analysis result for SHA-256 91183972e908c013…

MALICIOUS

PDF

389.4 KB
MD5: 5a2cad006b8b27b54e295b41d8999823 SHA-1: 8ef09dd715f547479f98ccc18f2362791bf3f610 SHA-256: 91183972e908c013504d12d00c45f8576d733353c1c5274ebbd1c7c2e741f164
60 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The PDF file contains a direct link to an MSI installer, identified by the PDF_DIRECT_PAYLOAD_LINK heuristic. This indicates the document is designed to trick the user into downloading and executing a malicious installer. The embedded URL is the primary indicator of compromise, suggesting a delivery mechanism for a secondary stage malware.

Machine Learning

  • Nyx PDF Classifier clean score 0.0003

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 http://ns.adobe.com/xap/1.0/
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/sType/ResourceEvent#
    • http://ns.adobe.com/photoshop/1.0/
    • http://purl.org/dc/elements/1.1/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_016_off00038b21.bin
06e1c3d67bd0ed384f43b52999fc51d63a44fe93ab9eb4c4acbb81e918688731		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x38B21 81556 bytes
stream_018_off0003edbe.bin
53f2f552fdb5a3c599c0d9a93b9b2d890c654c54155b5b505f1f143df7df9999		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3EDBE 75297 bytes

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