PDF malware analysis — malicious · 50c57b286bb578fe

MALICIOUS

PDF

97.0 KB

MD5: dce57f606d92e10acf60603d4c714c00 SHA-1: 721d1a887d35f51b301f12cba8815745da6486d5 SHA-256: 50c57b286bb578fedb196595b9bbd3813458a73d6fa6fa15887fb13c676904ee

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment

The PDF file was flagged as malicious by multiple engines, including a high-confidence ML classifier and ClamAV, which identified it as Pdf.Exploit.Agent-6136306-0. The presence of an XFA form and an embedded script payload indicates a likely exploit attempt. The embedded script is suspected to download and execute a second-stage payload, although its exact functionality is obscured.

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_0000026c.bin` `08c602c03d73b62d01ce7292133c8de8ee8f18084780a4ae8c8fa89abeb63fde`	pdf-embedded-script	PDF raw stream script payload at offset 0x26C	98657 bytes

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