Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b3a1f23ffa949be…

MALICIOUS

PDF

24.1 KB
MD5: e73826c4168ca0efee6be39293cc5f07 SHA-1: ea1a49d78e93cf68b244b69b0c69574045f43d0c SHA-256: 5b3a1f23ffa949be2dee0958a3d4dba7806024fa7e3e91d7f383a9fcdc253f09
160 Risk Score

Malware Insights

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

The file is identified as malicious by multiple engines, including ClamAV and an ML classifier. Critical heuristics indicate the exploitation of CVE-2010-0188 through an XFA form, a known vulnerability in Adobe Reader. The embedded URL, while seemingly benign, is present within the context of an exploit.

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: Pdf.Exploit.Agent-36821 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36821
  • 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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