PDF malware analysis — malicious · 12029d23e60c9fbc

MALICIOUS

PDF

14.6 KB

MD5: e5ed109867a7e18ba3fc08b57e2b5f88 SHA-1: fc330aad3b25f7f93a3d6284688b4df762773539 SHA-256: 12029d23e60c9fbcd4d6370a950619a8ca004697013c56ffda765e3de0aba95d

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 exploit. The script's content is heavily obfuscated, but its presence within an XFA form suggests an attempt to leverage a PDF viewer vulnerability for initial execution, potentially leading to the download of further malicious content.

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` `f7dd8f3fbabe123613518dcc8d3ecd43f87208e4818dbef3d36e3d0fe0b01e62`	pdf-embedded-script	PDF raw stream script payload at offset 0x329	14249 bytes
Detection ClamAV: Pdf.Exploit.Agent-36809 Obfuscation or payload: unlikely

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