Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e2e6f5f2f27bdb1…

MALICIOUS

PDF

50.6 KB
MD5: a257fe7fc3a220b0beac83561344f38e SHA-1: 7803c441d26d1ce7a8c46836735cac5b5e8d3164 SHA-256: 0e2e6f5f2f27bdb19f7f6145be27ed8f59319ba393a2afdfa6b691f76a995529
108 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by ClamAV and an ML classifier, containing an XFA form with embedded JavaScript. The script appears to be obfuscated but is designed to download and execute a second-stage payload, indicated by the 'Pdf.Exploit.Agent-6136306-0' detection name. The presence of XFA and embedded scripts points to an exploit targeting PDF viewers.

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_00000240.bin
f6fe3bc35d5f0a44fb441d7e423c05a3702a05cae95d0b952ef11f09e8790aef		 pdf-embedded-script PDF raw stream script payload at offset 0x240 51050 bytes

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