PDF malware analysis — malicious · e05e76fe3a42450a

MALICIOUS

PDF

14.6 KB

MD5: 296b5e5598272a83d7de90891e0a7a94 SHA-1: 60be4242f23dbc896d66c25f148fd1141addd151 SHA-256: e05e76fe3a42450a4d8bf92c3f09525b7d51db76e567ee74406cf8d496434ca4

180 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF was flagged by multiple high-confidence heuristics, including ML and ClamAV, indicating it contains an embedded script payload. The presence of XFA form elements and an embedded script stream strongly suggests an exploit attempt. The embedded artifact was also detected by ClamAV. The primary attack pattern involves leveraging the PDF's scripting capabilities to deliver a secondary malicious payload.

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
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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.
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://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_00000329.bin` `b2f74961e1479bec99864147142a2f37818017a9ebaf3a039979d7e08a00f29f`	pdf-embedded-script	PDF raw stream script payload at offset 0x329	14231 bytes
Detection ClamAV: Pdf.Exploit.Agent-36809 Obfuscation or payload: unlikely

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