Malicious PDF — malware analysis report

Static analysis result for SHA-256 890de8e9409daaf9…

MALICIOUS

PDF

100.7 KB
MD5: b85b46effdd0c77518ce7a168750cf7a SHA-1: c33676719963458598738819a01b69c856e206a2 SHA-256: 890de8e9409daaf919e547c599dd34ebc9564468008bded2a169216616e392b6
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 flagged as malicious by ClamAV and an ML classifier, containing embedded JavaScript. The script appears to be heavily obfuscated but is designed to execute code, likely to download and run a secondary payload. The presence of XFA form elements 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_00000246.bin
a2878b991b87b69c9dcc12fdf28ab0e3e51a53970e3422679aeac203bc57da83		 pdf-embedded-script PDF raw stream script payload at offset 0x246 102347 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.