PDF malware analysis — malicious · ea140999d44dbfc2

MALICIOUS

PDF

11.8 KB

MD5: d2442e6733a4558ea83d53447f98d423 SHA-1: d1a11bbd5482791644d6d874c4a0f2608f7bb63c SHA-256: ea140999d44dbfc256760a8211425fa91b8ab80eb85dd70d11b6fecd127b69de

126 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious Link: Malicious File

The PDF was flagged by a machine learning classifier with high confidence and detected by ClamAV as Pdf.Exploit.Dropped-78. It contains an embedded script payload and an embedded file, indicating it is designed to deliver a secondary malicious payload. The presence of XFA forms and embedded files suggests an exploit attempt.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
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_obj0008.bin` `1ac03618fdf02dc82ab596b9d6e836753021b0f37a2656a91200c53cf486242b`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11331 bytes

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