Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bbc87ad3a278766…

MALICIOUS

PDF

99.9 KB
MD5: c311a74eb4a8ead5b3c93b246fc008c2 SHA-1: 2553bb1ae724fba9818c6d3f603960e212b6c5a5 SHA-256: 6bbc87ad3a2787664132b83ed65885c4529e3eeae67844df392b588e4754c372
116 Risk Score

Malware Insights

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

The PDF file exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms and LibTIFF processing. This exploit is designed to achieve arbitrary code execution. While no specific malicious URLs or scripts were directly extracted and readable, the presence of an embedded file and the critical heuristic firing strongly indicate the file's intent is to exploit this vulnerability to download and execute a secondary payload.

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
0cbf7fe52209760c32000bd729407910a3d111f4899fde0e075525441d8b76fa		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101544 bytes

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