PDF malware analysis — malicious · ea7531368a40c073

MALICIOUS

PDF

4.1 KB

MD5: b4e909d4dfd547087eca582323eeb0e5 SHA-1: 72cca76601f97f6a58320e2840b448d7f1cc7ad3 SHA-256: ea7531368a40c07396e6c13a1d7ffe60b7fb56e717a9a7fdaaca802362c3f8b8

68 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF was flagged by a machine learning classifier with high confidence as malicious. Heuristics indicate the presence of an embedded script payload and an embedded file, suggesting it is designed to exploit vulnerabilities and deliver a secondary payload. The document body contains obfuscated content, further supporting a malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

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.
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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `11a788ca3001ff60327583f411090ed3bb6d65e668392526dae2d54f67a74c0c`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12665 bytes

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