Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a68c7577c837f56…

MALICIOUS

PDF

99.7 KB
MD5: a03c2116d60649a4a6431d1829d7d21e SHA-1: 19e1558ebcc7be604cc1a6a56cd0762c1d72c9ac SHA-256: 6a68c7577c837f560c952058ced4a22457ecef0edd2d919803ed2c4a1697de81
116 Risk Score

Malware Insights

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

This PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of XFA forms, to achieve code execution. The embedded script, which appears to be JavaScript, is likely responsible for downloading and executing a secondary payload. The ML classifier strongly indicates malicious intent, and the embedded file further supports this assessment.

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
dc30a23f92092fb9649d0200e7fd27d9f1c2f1318b404a9cd5e57c1c8fc9b80d		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101387 bytes

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