Malicious PDF — malware analysis report

Static analysis result for SHA-256 40e3271b04a6f8e2…

MALICIOUS

PDF

12.8 KB
MD5: 92a525ceccbf2ec3e9e836b162f6f94f SHA-1: 9a559049e7bcc3eca8deccb51358b85a0b6c62c6 SHA-256: 40e3271b04a6f8e26913353a792e78d48f577f9bbd67073f6612f11c8e7c996c
128 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF file that triggers critical heuristics for CVE-2010-0188, an exploit targeting Adobe Reader's XFA form processing. Additionally, ClamAV detected it as Js.Exploit.HTML-30, indicating embedded JavaScript exploit content. The embedded URL, while seemingly benign, is part of the exploit structure. The XFA form and JavaScript exploit suggest the primary goal is to achieve initial code execution on the victim's machine, likely to download and execute 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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