PDF malware analysis — malicious · 98cd8f560f808997

MALICIOUS

PDF

4.1 KB

MD5: bc9096cfab6e29e987b043c8e926e075 SHA-1: 30cee06f22a05da9fff8779dc0c701cf17eaa4ce SHA-256: 98cd8f560f808997f305429df42a982fee74ec12796f546012c75232f9a33eac

66 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. Static analysis revealed embedded script payloads and an embedded file, indicating a multi-stage attack. The XFA form and embedded file suggest the PDF is a container for delivering malicious content.

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` `deffba325287dab177f7302686e33381db944997e6afcabf5003a8ac3774ffa8`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12803 bytes

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