Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc91a141a8b45978…

MALICIOUS

PDF

24.1 KB
MD5: 3e62c04f1e91f512b68855a21d4807b5 SHA-1: bced920138726b9167e41fae8a5f5a23d793f261 SHA-256: fc91a141a8b459782b7b72ec3ea7f2f1c1066a9be625f123a16ea864190c04d4
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment T1059.001 PowerShell

The sample is a PDF file that triggers critical heuristics for CVE-2010-0188, an Adobe Reader LibTIFF XFA image exploit. Additionally, ClamAV detected it as Js.Exploit.HTML-30, indicating embedded JavaScript exploit content. The embedded URL, while benign in reputation, is part of the XFA structure exploited by CVE-2010-0188. The exploit likely leads to the execution of a malicious script to download and run a second-stage payload.

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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