PDF malware analysis — malicious · 5b02e53445286437

MALICIOUS

PDF

97.3 KB

MD5: be6a58ae1ad3546e7397a41067721b99 SHA-1: 49ce1be4556951821b28df05d1a091097e4a3944 SHA-256: 5b02e534452864375db5a8e07ca8195bd8e97f4e972cfed1597bc682506de15b

108 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF utilizes XFA (XML Forms Architecture) and contains an embedded JavaScript payload. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded script, though obfuscated and truncated, appears to be designed to download and execute further malicious content, a common technique for initial payload 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://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` `33c1d847a4c49040b8d69c7fef310949b180a1ae16ffb16c9a67f0aaca3c820f`	pdf-embedded-script	PDF raw stream script payload at offset 0x26C	98867 bytes

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