Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2dcaf1da190faac…

MALICIOUS

PDF

4.2 KB First seen: 2026-05-08
MD5: 5ec163df3e6179a27daad7d8de8e22c2 SHA-1: d4a7d08635103ec13863e33c2c50fe049a5ce850 SHA-256: c2dcaf1da190faacda7f2b44a2dad6b4fbee5f724e0715f6261eb5f7a3a8cf3a
110 Risk Score

Malware Insights

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

The PDF document was flagged for containing an embedded script payload. This indicates the file is likely a dropper or downloader. The embedded artifact 'embedded_file_obj0008.bin' is the most significant IOC. The XFA form and general embedded file heuristics further support the malicious 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 12908 bytes
SHA-256: 05a7e83d1418bfa4ac2ad92f6f3a94788116422f76c9d2d8b96bb5268967801c

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