Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e2b16d123f3ed73…

MALICIOUS

PDF

13.5 KB First seen: 2026-05-08
MD5: 89cb92718e3842b3cd3f9aa9e7f910ce SHA-1: fad34c2a9d87f7453fd52853a19296d264b77391 SHA-256: 4e2b16d123f3ed73c24e1075552eb0444e1ab004bebe81c0d140852e7d47d33b
70 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File

The PDF file contains embedded content and an embedded script payload, indicating an attempt to exploit vulnerabilities. The presence of XFA forms and embedded files suggests a potential for malicious script execution. While the document body is heavily obfuscated and unreadable, the heuristics point towards a malicious PDF designed to deliver a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Embedded script payload in PDF stream info 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://ns.adobe.com/xdp/ In PDF document text
    • http://www.xfa.org/schema/xfa-template/2.5/In PDF document text
    • http://www.xfa.org/schema/xfa-data/1.0/In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 13057 bytes
SHA-256: 0abceb4824963e840ffdaf3b7c99ad9c8a3c434659e944852315546eb549feec

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