PDF malware analysis — malicious · 096d647443535d2e

MALICIOUS

PDF

12.8 KB

MD5: 8b10c67d4938f1b9ea017277039d507b SHA-1: e7fa4a3e90800eb0e27345c671abff027c989b61 SHA-256: 096d647443535d2e218e54f8e1f0cfe32effcd75413b5700315431a4fba3de61

108 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF was flagged by multiple heuristics, including ML and ClamAV, for containing an embedded script payload and exploiting XFA forms. The embedded JavaScript, though obfuscated, appears to be designed to download and execute a secondary payload. The presence of an embedded URL, even if confirmed benign, suggests a communication channel was intended.

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` `0ac20c4d1ce17f6660fb8b166e3ebc6bee00c832cbb41cd96d31e3f398cf8e08`	pdf-embedded-script	PDF raw stream script payload at offset 0x359	12342 bytes

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