PDF malware analysis — malicious · 64ec5757737fb9bd

MALICIOUS

PDF

12.8 KB

MD5: 5604993913c2ac68347f9680e54b083c SHA-1: bbdb3f149cf1ac76c29d254c17c5fc03b9d95b34 SHA-256: 64ec5757737fb9bdee26c7f92f22767e41217a4d5f42f100222c00029317a701

108 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript, indicated by the 'PDF_EMBEDDED_SCRIPT_PAYLOAD' heuristic and the script content. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded script likely attempts to download and execute a second-stage payload, a common technique for malware delivery.

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://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_00000359.bin` `24711dbfbf4d5666dca665554b0a70abbdddfa402dba302888ce8c14795ff7c6`	pdf-embedded-script	PDF raw stream script payload at offset 0x359	12328 bytes

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