PDF malware analysis — malicious · ecf72a11c2bea6c1

MALICIOUS

PDF

15.8 KB

MD5: 028140d533289b5a88d27a975bcedd63 SHA-1: 33be4654899e62d4395f0902851cbb0c091c26d0 SHA-256: ecf72a11c2bea6c1aad59ab8ec1724436fcfbb4f396de9d950c22480af23dcee

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged by an ML classifier as malicious and contains an embedded script payload. The embedded script is likely responsible for executing malicious actions, potentially downloading and executing a second-stage payload. The presence of XFA form elements and embedded files further indicates a malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9799

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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_000002dc.bin` `6337cf8f8c2e5bdff100b6470f7ff3a174ee63e39a024b6d6dd66ad1ab28b7cb`	pdf-embedded-script	PDF decompressed stream script payload at offset 0x2DC	14224 bytes

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