PDF malware analysis — malicious · 110ab7555a5560fb

MALICIOUS

PDF

18.3 KB

MD5: 3bac5fcf217e920d754cd960f28a7f7b SHA-1: 41e367bddd56ae518471dce34ea62bc0ec16aaeb SHA-256: 110ab7555a5560fb5f6093f9991ed97aa948eccd61b95f766a4e2ca889a04b8f

168 Risk Score

Malware Insights

MITRE ATT&CK

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

This PDF file was flagged as malicious by multiple engines, including ClamAV, and exhibits characteristics of an exploit. The embedded script, identified as JavaScript, is likely responsible for executing the malicious payload. The presence of XFA form elements and embedded scripts points towards an exploit targeting PDF viewer vulnerabilities.

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` `e44be4f877afb9b884a033ca3ab43a546930e475b903aa3ecf0a34edb46ace74`	pdf-embedded-script	PDF raw stream script payload at offset 0x329	18002 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.