PDF malware analysis — malicious · 4aa76a170cb2fad1

MALICIOUS

PDF

100.4 KB

MD5: 898de852dfd008e4f86e2bdf445fdacf SHA-1: a96d7af973646c4afebf5840a95ea94dfe814e42 SHA-256: 4aa76a170cb2fad1d22a6864c88be30303f54f8a620c243579a62685e84a6038

148 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious File T1566.002 Phishing: Spearphishing Attachment

The PDF file contains an embedded script payload and leverages XFA forms, indicating a malicious intent to exploit vulnerabilities or deliver further malware. ClamAV detections further confirm its malicious nature. The embedded script is likely responsible for executing the exploit or downloading a secondary payload.

Heuristics 5

ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
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://ns.adobe.com/xdp/
- http://www.xfa.org/schema/xfa-template/2.5/
- http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_00000246.bin` `2a47cb9190ed78f1247f272c26477ac86847d93b19ece945363f61ff3ddc214e`	pdf-embedded-script	PDF raw stream script payload at offset 0x246	102044 bytes
Detection ClamAV: Pdf.Exploit.Agent-36769 Obfuscation or payload: unlikely

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