Malicious PDF — malware analysis report

Static analysis result for SHA-256 867b48128ead4637…

MALICIOUS

PDF

99.6 KB
MD5: e4af7f358adf0a50bf160b9aa030238a SHA-1: e8b988283924a8e6211d82a98f9f5df885ce5ec9 SHA-256: 867b48128ead46371e9435d0993db2f57c90a1fa743dfaa1c72e59a8c36c3117
116 Risk Score

Malware Insights

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

The PDF sample contains embedded JavaScript and triggers the CVE-2010-0188 exploit, indicating it is designed to execute arbitrary code upon opening. The exploit likely serves to download and run a secondary payload, although the specific nature of that payload cannot be determined from the provided evidence. No benign URLs were found to be directly referenced by the exploit.

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
9e3788f9272306e0796332f71e2e141a810d8c01b03a1f89a502e036579a3e03		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101272 bytes

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