PDF malware analysis — malicious · ab3bf8d67bd3ea23

MALICIOUS

PDF

97.0 KB

MD5: be2d113bfb1567f43bc6eedccdd94d71 SHA-1: f41b58ceb3c9c445a0dba5a9825946b4ed2c2af4 SHA-256: ab3bf8d67bd3ea231dfadb859fd90d799b9df3616a92818b4a057592b935d65c

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains an embedded script payload and triggers XFA-related heuristics, indicating it's designed to exploit vulnerabilities within the PDF reader. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded script likely downloads and executes a second-stage 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_0000026c.bin` `0772c6651a4b5ecd589109f5389dd26b31c93b4cd1d6799b5516c12ca4911071`	pdf-embedded-script	PDF raw stream script payload at offset 0x26C	98655 bytes

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