PDF malware analysis — malicious · 593db1518991c823

MALICIOUS

PDF

13.0 KB

MD5: 0671eef8f15d2249c6e7671358454a2c SHA-1: 1086024f3dc40a83c2ac7adb369fb0be31d01251 SHA-256: 593db1518991c823bf809e49dd69ea05587d5507ba2f56c63fc6df4ba3b201fe

66 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains embedded scripts and an embedded file, indicated by the PDF_EMBEDDED and PDF_EMBEDDED_SCRIPT_PAYLOAD heuristics. The ML classifier strongly flagged this PDF as malicious. While the document body and scripts are heavily obfuscated, the presence of these elements suggests an attempt to deliver a malicious payload. The embedded URLs are not directly actionable for malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL http://ns.adobe.com/xdp/\
- http://www.xfa.org/schema/xfa-template/2.5/
- http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0009.bin` `ea53d8d72dd82c0757db6bcaf17d54c7d4d4f7ea8d28c6b9d5fca8a5b33a047b`	pdf-embedded-file	PDF EmbeddedFile object 9 at offset 0xD5	12534 bytes

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