Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ca1f6ad71477edb…

MALICIOUS

PDF

99.8 KB
MD5: 9df9670c9ed4f4726f0fdabd795e0dfe SHA-1: 502093448cb7cedc739870bcffc3f2834703a22c SHA-256: 5ca1f6ad71477edbe6b029df4e6f2e73a8abec5f666c2c4813f1d5e3004c0ec9
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 an ML classifier. It exploits CVE-2010-0188, a known vulnerability in Adobe Reader's LibTIFF component, to achieve code execution. The PDF also contains an embedded file and XFA form, which are common vectors for exploiting such vulnerabilities. No specific malware family could be identified, but the exploit indicates a likely attempt to deliver 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
994d6d4b4f3362a6e5073496e7313d3f090d671d8c0df5583c519ab0f9e63d91		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101488 bytes

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