Malicious PDF — malware analysis report

Static analysis result for SHA-256 55887e8ef62c5964…

MALICIOUS

PDF

24.2 KB
MD5: 7c6745bbad6316e7f88819c471d8723d SHA-1: ed68381e859d1983c3483159e5585f48ee278e27 SHA-256: 55887e8ef62c59646cb43f491a223d0e6f9b7e9f7cb12379b080ddf9b1ff2ee1
128 Risk Score

Malware Insights

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

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. ClamAV also detected it as Js.Exploit.HTML-30, indicating embedded JavaScript used for exploitation. The embedded URL is likely related to the exploit or a subsequent download. The document body contains obfuscated JavaScript-like code which, when deobfuscated, likely forms part of the exploit chain, potentially downloading and executing 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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