PDF malware analysis — malicious · 5edce129fccd22ee

MALICIOUS

PDF

11.6 KB

MD5: 444b9c9cd5e13b24ad33b3ca0604b498 SHA-1: c1b0c64888b76d13e3a3f1cbbaaf6fbf3d3cfbea SHA-256: 5edce129fccd22ee1787846dc7878c3ad442f7c72df779957fdae32e26ec9179

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains embedded script content and is flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Dropped-78'. The ML classifier also strongly indicates maliciousness. The embedded file suggests a dropped payload, likely executed via an exploit.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
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_file_obj0008.bin` `094a1674e669c984cfb17094b1c0115c90f0a6a533d833a02bd96c9875deaf7a`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11111 bytes

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