Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a340fdce2fce5a5…

MALICIOUS

PDF

414.9 KB Created: 2010-04-29 13:13:17 -05:00 Authoring application: PScript5.dll Version 5.2.2 (via Acrobat Distiller 8.1.0 (Windows))
MD5: a4f5826d369fe50a0e727b7283658c30 SHA-1: f3018d9e73581286d72d638cee1be8c36a5862f6 SHA-256: 3a340fdce2fce5a5034ca7356b41dc2c5d336f7a95780bc0530b0809f01bb741
60 Risk Score

Malware Insights

MITRE ATT&CK
T1557 Adversary-Controlled Active Content

The PDF file contains an embedded Windows executable payload within a stream, identified by the PDF_EMBEDDED_PE_PAYLOAD heuristic. This strongly suggests the document is a dropper or container for malicious software. No document body text or scripts were available for further analysis, limiting the ability to determine the specific lure or execution method.

Machine Learning

  • Nyx PDF Classifier clean score 0.1385

Heuristics 2

  • Embedded Windows executable payload in PDF stream critical PDF_EMBEDDED_PE_PAYLOAD
    PDF stream bytes contain an embedded Windows executable with a verified PE header. Exploit chains often hide droppers inside ordinary streams rather than standard /EmbeddedFile attachments.
  • 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://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/mm/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_000027b1.exe
72a9ef79a0826f86be770d79f362d9bbed7a30cbf826b8aa05e27c8d328a6ae8		 embedded-pe PDF decompressed stream PE payload at offset 0x27B1 414687 bytes

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