PDF malware analysis — malicious · ca758a84d5f79218

MALICIOUS

PDF

79.4 KB

MD5: e805c618c1d6b43cffdac6f32eba585b SHA-1: c412330ef1f47839d47728275870bde466719c90 SHA-256: ca758a84d5f79218724e087ae3314f5ca605de963c7fda2050ce7093b7ced372

120 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious File T1566.002 Phishing: Spearphishing Attachment

The PDF exhibits characteristics of malicious exploitation, including XFA form usage and an embedded script payload. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded script is likely responsible for delivering the secondary payload, though its exact function is obscured by the PDF structure.

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
Embedded script payload in PDF stream medium 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.
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
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_0000023c.bin` `c7c3c374504d1b533482b1734b2c41bed0173ae21393e8f14e6c860d7f1e3e7c`	pdf-embedded-script	PDF raw stream script payload at offset 0x23C	80624 bytes

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