Malicious PDF — malware analysis report

Static analysis result for SHA-256 699319e2ead5f0e6…

MALICIOUS

PDF

99.9 KB
MD5: da9c81ec2774b23cd5c948c00a68d28a SHA-1: 4e4f3e074d8d4f92bf2589911436041a5f0f1703 SHA-256: 699319e2ead5f0e6c5a23917bce83609b5feda5b648d63b42922a94bd6bd2f99
116 Risk Score

Malware Insights

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

The PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms, to achieve code execution. The embedded script, though obfuscated, likely facilitates the exploitation process. The presence of XFA and embedded file structures further supports this attack vector.

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
6b35ba4047b376dadae010cb82edfe65db77fe34ecb4e6613c5bd2a4dd2dde80
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101527 bytes