PDF malware analysis — malicious · 770eeb2240494b51

MALICIOUS

PDF

18.4 KB

MD5: 38cedaf67d4a301d21b525314f3d4003 SHA-1: 194b21f2b4694964b516fbf838d124a49fa4c6de SHA-256: 770eeb2240494b519becec77d4b2711f6d79d49a3d69e05066740ec9ae6bcef3

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file was flagged as malicious by multiple engines, including ClamAV, and exhibits characteristics of an exploit. The presence of an XFA form and an embedded script payload indicates an attempt to execute malicious code. The embedded URL, while seemingly benign, is part of the document's structure and may be used in conjunction with the exploit.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Agent-36789 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36789
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_00000325.bin` `122e3f81089a77db493b4aa8fd0daf5ec8466e8d567c5b12dc414a97dd9954a0`	pdf-embedded-script	PDF raw stream script payload at offset 0x325	18137 bytes
Detection ClamAV: Pdf.Exploit.Agent-36809 Obfuscation or payload: unlikely

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