PDF malware analysis — malicious · 1eb8929ecd643d86

MALICIOUS

PDF

4.2 KB

MD5: 977881c46d5e1e00c609f14b6efd624a SHA-1: ab6515d211dba267bc27cee0dcfd4f60cc58ded5 SHA-256: 1eb8929ecd643d86f2a556868ab1838a59dcc1d37092601eed833bb372866296

66 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The ML classifier strongly indicates this PDF is malicious. Heuristics confirm the presence of an embedded script payload and an embedded file, suggesting it is designed to exploit vulnerabilities and download a second-stage payload. The embedded file artifact is noted as a potential IOC.

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` `06d0534a05bd73c477ed4ee21bf9943e36a317f5168b1be2cd8cd21e2f9f4ad3`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12983 bytes

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