PDF malware analysis — malicious · 530374d75b93ac07

MALICIOUS

PDF

4.2 KB

MD5: c34d6310ce5277db83249a72d387b8fc SHA-1: ba6585c5b90dada1eee93729862c5cc72e229f84 SHA-256: 530374d75b93ac0761d9d47323f3fc6ba7a16598171156ccee5b7dfc521abcc4

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's a dropper. The embedded file 'embedded_file_obj0008.bin' is likely the next stage of the attack.

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` `b55771c17eeca728e38853bff4d99d9ab40f6cb34ed73dd254e439a234808bb5`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12834 bytes

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