PDF malware analysis — malicious · 095f1b3dd4ffd4c2

MALICIOUS

PDF

14.7 KB

MD5: 036047be104ffa12bd56a8833586c6b3 SHA-1: 68876f94b26e56807fd3c9009fd32d97db7f21f4 SHA-256: 095f1b3dd4ffd4c258a314b38956fabd8df03ecbf36c3fe13a8ced1f95f48444

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 XFA form and script payload indicate an attempt to execute code. The script itself appears to be obfuscated JavaScript, likely intended to download and execute a further stage, as suggested by the 'Pdf.Exploit.Dropped-78' ClamAV detection.

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` `7a9bcf782c9c0cce93601032c0d61e7a5d89b66a1d405c94a0da07bead0dc4c7`	pdf-embedded-script	PDF raw stream script payload at offset 0x329	14301 bytes
Detection ClamAV: Pdf.Exploit.Agent-36809 Obfuscation or payload: unlikely

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