Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e09a69849ba0ae4…

MALICIOUS

PDF

99.8 KB
MD5: d7b67cb99d1cb8e8c2bc49b6170f2f00 SHA-1: 6e1b8ecee9d9d90dd713d7a9cf5c5bcca84154a7 SHA-256: 6e09a69849ba0ae433345207244f1fff3b4d145b24173fd68f26530576d65f93
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The sample is a PDF file identified as malicious by an ML classifier. It exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms, to achieve code execution. The presence of an embedded file and script payload further indicates malicious intent, likely to download and execute a secondary payload. The benign URLs found are likely unrelated to the exploit itself.

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
4f0020dcf01f9fa526b53582de505ac7732d361de6b0d662925103007c284f27		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101468 bytes

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