Malicious PDF — malware analysis report

Static analysis result for SHA-256 3de25176ae0b6e9d…

MALICIOUS

PDF

4.2 KB First seen: 2026-05-08
MD5: 9664ad968712ef8b3c250de93b00ec8e SHA-1: 7fe0cda73c0db9eea7280cf70ad07f2f7bc96144 SHA-256: 3de25176ae0b6e9df0023285778abcff84422686e0f2923c8f45810ff1340eb8
110 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1559.001 Component Object Model Hijacking

The PDF file was flagged for containing an embedded script payload within a stream, indicating a potential for malicious code execution. The presence of an embedded file further supports this, as it could be the actual malicious payload. The XFA form heuristic is less concerning but contributes to the overall suspicious nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
  • 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/1.0\ 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 0xEA 13011 bytes
SHA-256: 61a1825abaeaf0b89ccdcd60bac552eab30a671f7eaa8e02dbfc99191dbd8c44

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