PDF malware analysis — malicious · fdd29e6f0d8ab41a

MALICIOUS

PDF

4.1 KB

MD5: 0338c383e5891d7060ddeba34e2ead69 SHA-1: 6be89afb37899253f48ce4e1843ebc557024ac99 SHA-256: fdd29e6f0d8ab41a56fdb54bfd4a1d7f4fe1f25a0896910fdc1525505dd04b31

66 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF was flagged by a machine learning classifier with high confidence (0.999972) and heuristics indicate an embedded script payload. This suggests the PDF is intended to execute malicious code upon opening. The presence of an embedded file further supports its role as a dropper or initial access vector.

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` `3cb5e2e6267b8272b44c40d3d83085258e242a7bfb0bb2baa49b4be1595fb0b2`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12824 bytes

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