PDF malware analysis — malicious · 1cb4d9b2980e02f5

MALICIOUS

PDF

97.3 KB

MD5: 5eeeb79b4b88f7f9b6b79f20a242688b SHA-1: d78d71336c5c00c3abdeb152f84fab906ca962ab SHA-256: 1cb4d9b2980e02f5813a2354223935fc25b472b3d4a1869ad5f60acd051d5289

88 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains an embedded script payload within an XFA form, as indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD and PDF_XFA heuristics. ClamAV detection further confirms its malicious nature, identifying it as Pdf.Exploit.Agent-6136306-0. The embedded script is likely responsible for executing the exploit, leading to the delivery of a secondary payload. The embedded URLs, while not directly malicious, are associated with XFA form functionality.

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` `39a7f603083169fc708ab5b8219394a3d8aeb55915e9e2916b2a06efd0ae1936`	pdf-embedded-script	PDF raw stream script payload at offset 0x26C	98867 bytes

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