PDF malware analysis — malicious · 7803616425c9a8a0

MALICIOUS

PDF

97.0 KB

MD5: f283a5d7cf259b914734d2b8efff6d67 SHA-1: 5d64eba1cd695d998172a09c9778889e866cd86c SHA-256: 7803616425c9a8a09cdead0c304bb0d23f97acaccfb92c4f1e4ad6c6908ee7df

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, flagged by multiple heuristics as malicious. The script is heavily obfuscated but appears designed to download and execute a secondary payload. The ClamAV detection 'Pdf.Exploit.Agent-6136306-0' further supports the malicious nature of this file, likely delivered as a spearphishing attachment.

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.

Filename	Kind	Source	Size
`embedded_pdf_script_0000026c.bin` `f3c883ee6e8b868bacef09b015a66667dcdd980575fa042ef878de6516759ee2`	pdf-embedded-script	PDF raw stream script payload at offset 0x26C	98655 bytes

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