PDF malware analysis — malicious · 0f20b5b87cbecebe

MALICIOUS

PDF

98.4 KB

MD5: ee0173b0bc41f5f739bef7101d424d20 SHA-1: 348c38161b527e081af9d9eba1624153c234c064 SHA-256: 0f20b5b87cbecebef9f89f358575f6de7877bf2e412953e7ce7bfa620bd77d8d

108 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF was flagged as malicious by ML classifiers and ClamAV, specifically detecting an exploit within an XFA form. Embedded JavaScript was found within the PDF stream, which is likely responsible for executing the exploit. The script's obfuscated nature and the presence of exploit indicators suggest it attempts to download and execute a second-stage payload.

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` `ee6d8d0d251a5c5adf83f64449b87841a99fc17a519dee615dca6b20e79f094d`	pdf-embedded-script	PDF raw stream script payload at offset 0x26C	100059 bytes

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