Malicious PDF — malware analysis report

Static analysis result for SHA-256 70c809b95149b4b8…

MALICIOUS

PDF

79.2 KB
MD5: 962363c994eb0ad592b9b7bb4f9d19e0 SHA-1: 3259baf45570f49bb9bf2dda983e4b1be675e851 SHA-256: 70c809b95149b4b84df06b91cb11154c75d49c1bd61e7942f6f1fadd92459223
116 Risk Score

Malware Insights

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

This PDF file contains an embedded XFA form that exploits the CVE-2010-0188 vulnerability in Adobe Reader. The exploit is designed to execute arbitrary code, which is a common technique for delivering secondary payloads. While no specific URLs or scripts were directly extracted and readable, the presence of the exploit and embedded file strongly indicates malicious intent.

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
e12a8b8e2c4f93e22b61c59618f96c23d64b13c4695627a222cd3d4ad788ba5f		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80389 bytes

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