Malicious PDF — malware analysis report

Static analysis result for SHA-256 09b4560dd690b866…

MALICIOUS

PDF

79.0 KB
MD5: 9bf3f41d26ca1b3cd59e70d83fc48cf0 SHA-1: 2779e4ab77ef166c9b053009a1e31e67c3aa63b4 SHA-256: 09b4560dd690b8661233157f7570703fa0482667da9c4f58636fc5ee92523288
116 Risk Score

Malware Insights

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

This PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader's handling of XFA forms. The critical heuristic firing indicates the exploit payload was decoded from a raw stream. While no specific malicious URLs or scripts were directly extracted, the exploit's nature suggests it's designed to download and execute a secondary payload, aligning with common exploitation techniques.

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/
    • 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_file_obj0008.bin
6770e2159080b117cd8bec6676cbde3cd91f3d6caf7673f00f655aa026103e9a		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80160 bytes

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