Malicious PDF — malware analysis report

Static analysis result for SHA-256 0376f4e1bc1f33c8…

MALICIOUS

PDF

24.2 KB
MD5: ea71611620a0dfd824d5870eee27f0cb SHA-1: 6cb69c7b39f9c98a0d36d2b20f608cbad6f22e14 SHA-256: 0376f4e1bc1f33c8502becd7fb37d3b34865906c5fce5703f964368eeecec45b
160 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by multiple heuristics, including a critical detection for CVE-2010-0188, an Adobe Reader exploit targeting XFA forms. The ML classifier also strongly flagged the file. The embedded URL is likely related to the XFA template, but the primary malicious activity is the exploitation of the CVE. The ClamAV detection 'Js.Exploit.HTML-30' suggests JavaScript is involved in the exploit chain, likely to download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • ClamAV: Js.Exploit.HTML-30 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Js.Exploit.HTML-30
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • 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://www.xfa.org/schema/xfa-template/2.5/

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