Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d6351fdb9116c7f…

MALICIOUS

PDF

99.5 KB
MD5: bd5bcc7e5e05859def6e1fa30a3d9c77 SHA-1: 3f5f95eb66fd75f1f5b34e4f9d38b594ba34883f SHA-256: 0d6351fdb9116c7f335563c31b25d73d8c66d633056b145c077d253d99814d82
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The sample is a PDF file identified as malicious by ML classifiers and heuristics. It exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms, to achieve code execution. The embedded script payload and XFA form suggest the PDF is designed to download and execute a secondary stage, likely delivered via spearphishing.

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
93f511f668c56fe43d57c115e8c8f5fd0b1b3bdb809d371236fa250966e10658		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101113 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.