PDF malware analysis — malicious · 3b0cc880a3ba931f

MALICIOUS

PDF

94.1 KB

MD5: 24e7238947fd6b22cbdabd6eafce8f8b SHA-1: ad5533f6d721aea3da0e74c047b9f7c18b72e1e7 SHA-256: 3b0cc880a3ba931fd37f1ddfa4d271496da46be268bb7455ecb5a84522802bd8

180 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF utilizes XFA forms, a known vector for exploitation, and contains an embedded script payload. ML classification and ClamAV detections strongly indicate malicious intent, likely for delivering a secondary exploit or malware. The embedded script is the primary mechanism for this delivery.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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_00000246.bin` `cba5c2e7ab34c97916adf2faf57dbcb585d0e6708f59636775acc4dc44238fdd`	pdf-embedded-script	PDF raw stream script payload at offset 0x246	95638 bytes
Detection ClamAV: Pdf.Exploit.Agent-36769 Obfuscation or payload: unlikely

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