Malicious PDF — malware analysis report

Static analysis result for SHA-256 61029a3624d7dac6…

MALICIOUS

PDF

12.9 KB
MD5: 958994a565a40023e15ff12b41bcade8 SHA-1: 9d03042704e0a3e9a2744d1a04c831a1b3d382f7 SHA-256: 61029a3624d7dac677bf1f05aed3cc2b244ffcbdf329fe1f2c448031bdc19b8a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The file is a PDF document identified as malicious by multiple engines, including ClamAV and a machine learning classifier. Critical heuristics indicate exploitation of CVE-2010-0188 via an XFA form, which is a known vulnerability in Adobe Reader. The embedded URL, while benign in appearance, is associated with XFA templates and likely serves as a lure or part of the exploit chain.

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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