Malicious PDF — malware analysis report

Static analysis result for SHA-256 07fb8dc85314e052…

MALICIOUS

PDF

99.9 KB
MD5: 9fc618eb102f869c358d8c380d9d0eeb SHA-1: 49bc9ff155bcbfb17b1997be425e35b3c0304ccc SHA-256: 07fb8dc85314e052f9d6ca3cc8cb01a1e284f3399dada095233ebc433d334fc9
116 Risk Score

Malware Insights

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

The PDF sample contains a critical heuristic firing for CVE-2010-0188, an exploit targeting Adobe Reader's XFA forms. This indicates the file is designed to achieve code execution upon opening. The presence of embedded script payloads and an embedded file further supports the likelihood of this PDF acting as a dropper for additional malicious content. The ML classifier also strongly flagged this PDF as malicious.

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
f584e757347ba9cebeac03f5d103bc90a03ddb30ca3c8ca48712c2bb0d22a183		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101534 bytes

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