Malicious PDF — malware analysis report

Static analysis result for SHA-256 80eec1c5e65d2874…

MALICIOUS

PDF

4.2 KB First seen: 2026-05-08
MD5: 59d81f0bcabe4d6e3eb8c70e25bfbf67 SHA-1: 4b633519866a375b904b506af9f3fce0672f1cb2 SHA-256: 80eec1c5e65d2874e9ecf60357d7618a662eba151cf7b62c59de03dd58064496
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF sample contains XFA (XML Forms Architecture) and triggers the CVE-2010-0188 vulnerability in Adobe Reader, which is known to be used for arbitrary code execution. The embedded script payload and ML classifier further indicate malicious intent. The exploit likely facilitates the download and execution of a secondary payload, though the specific script content is not detailed enough for further analysis.

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 low 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 0xEA 12827 bytes
SHA-256: 98c16017317ab9f284272e815717adf447ac8198bca80af524fa26abe5ddec9b

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