PDF malware analysis — malicious · c7ecb60b7ad501b3

MALICIOUS

PDF

123.4 KB

MD5: 35f0549fe2a3a33fc5c3f26eec97b65a SHA-1: 5047da4a1e4b1ba4024f59a1afca0c607e1a0427 SHA-256: c7ecb60b7ad501b30f6cf879c89b33bbbe2f3228f69505e7b293a80455af5c42

118 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Dropped-78' and a high ML score. It contains an embedded script payload, indicating it's designed to execute malicious code. The presence of an XFA form further suggests a complex, potentially exploitable structure. The embedded URL, while seemingly benign, is present within the document's structure.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
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://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_00000329.bin` `99a7a5e89b4864a2d4efd29660c307a7b735312c343187b980de4ddffbe009c6`	pdf-embedded-script	PDF raw stream script payload at offset 0x329	125612 bytes

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