PDF malware analysis — malicious · 52b95e16e6d99873

MALICIOUS

PDF

14.6 KB

MD5: e3ba933a5952c05d896d9b286a61dddc SHA-1: 8641fd80837926252136972f1b47ee22bc77b091 SHA-256: 52b95e16e6d998737f4c46483310b3a37079e57eecf247d9ba9de704a7b69c2c

180 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The file is identified as a malicious PDF by multiple high-confidence detections, including ML classification and ClamAV. The presence of an embedded script payload and the ClamAV detection name 'Pdf.Exploit.Dropped-78' strongly suggest that this PDF is designed to exploit vulnerabilities and download a secondary malicious payload. The embedded URL is likely part of the exploit chain or payload delivery mechanism.

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` `3830b9d8500eb2d6dcaefa9931b4d3b099c49b7ef15b6d9442026e9ff735330e`	pdf-embedded-script	PDF raw stream script payload at offset 0x329	14261 bytes
Detection ClamAV: Pdf.Exploit.Agent-36809 Obfuscation or payload: unlikely

Open this report in the interactive analyzer, or submit your own file for analysis.