Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e8f9f5001caa5b5…

MALICIOUS

PDF

101.3 KB
MD5: 9d433f95ef92f79b63e767ccd7b88d82 SHA-1: cb5e7428f94eaa3309304936d9243d0db48df2c5 SHA-256: 0e8f9f5001caa5b5a7d2e8086426f2143159a94302ed4a556877ecdd1bc64606
108 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript within an XFA form, a known vector for exploiting PDF vulnerabilities. The embedded script is heavily obfuscated but appears to be designed to download and execute a secondary payload. The presence of the 'Pdf.Exploit.Agent-6136306-0' ClamAV detection strongly indicates malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Embedded script payload in PDF stream low PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • 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/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_0000025e.bin
7fdfe28cd9fca0bfefe640ae158be1dd31aff7d474e34ca38a95f6806624fd28		 pdf-embedded-script PDF raw stream script payload at offset 0x25E 103039 bytes

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