Malicious PDF — malware analysis report

Static analysis result for SHA-256 36ab93cc41fa478d…

MALICIOUS

PDF

101.2 KB
MD5: b74723f30639c52e7b56058c71f509cd SHA-1: 90ee0e6d0167f775688cf2e15a1a7bdca69d1d36 SHA-256: 36ab93cc41fa478dd006117a0ecd5ae151a57377739eb4a10559caf4e4d0837e
118 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains an XFA form and an embedded script payload, strongly indicating malicious intent. ML classifiers and ClamAV detections confirm this, flagging it as Pdf.Exploit.Agent. The embedded script is likely responsible for downloading and executing a second-stage payload, though its exact functionality is obscured by the PDF structure. The presence of XFA suggests an exploit targeting Adobe Reader or similar software.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • 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.

FilenameKindSourceSize
embedded_pdf_script_00000246.bin
1219a19617b46738e3074e0b04e1586f2f993358e490e5e9a2e4cfde89746354
pdf-embedded-script PDF raw stream script payload at offset 0x246 102926 bytes