Malicious PDF — malware analysis report

Static analysis result for SHA-256 981963120ad6498e…

MALICIOUS

PDF

100.7 KB
MD5: 2d1d93d64e19c02420b04ebda9eb9afc SHA-1: d20d8cc69d70a42c7daa7c9af9f55d995d4a2d98 SHA-256: 981963120ad6498e2cfff2ceebc446692b89929e3cef00509b1826dbf184371a
118 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains an embedded script payload and triggers XFA form heuristics, indicating it's designed to exploit vulnerabilities within the PDF reader. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded script is likely responsible for downloading and executing a second-stage payload, although its exact functionality is obscured by obfuscation.

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
3b26ffcbe8c35395103b34c956ccc79e049fd6bc88b76a5430f0b515de4e0aab		 pdf-embedded-script PDF raw stream script payload at offset 0x246 102347 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.