PDF malware analysis — malicious · 0b92e06524c6693b

MALICIOUS

PDF

14.6 KB

MD5: f7925cd4bb34373883505417428e20d1 SHA-1: 9e26416765a87cfb53d24f727e836a93605ad24f SHA-256: 0b92e06524c6693bef49820502215ef7ae982cd0ff23abeda20d13dec79d80d8

168 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The file is identified as malicious by multiple heuristics and ClamAV, specifically flagging it as a PDF exploit that drops a payload. The presence of an XFA form and embedded JavaScript strongly suggests an attempt to execute malicious code. The script's complexity and truncated nature prevent a full analysis of its specific actions, but its presence in a malicious PDF points to a downloader or exploit execution pattern.

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.
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
Embedded script payload in PDF stream low 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 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` `2c8fa14fc840194ef067b23eb963f991f963e5425d5c217e76d71c15df8135b7`	pdf-embedded-script	PDF raw stream script payload at offset 0x329	14230 bytes
Detection ClamAV: Pdf.Exploit.Agent-36809 Obfuscation or payload: unlikely

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