Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bc7836cb82439a4…

MALICIOUS

PDF

23.9 KB
MD5: e13e2b681667514b6f345926c0e5adbc SHA-1: 2e885c1a5aef5b0bbb83cbf01f5409a0ddf88592 SHA-256: 6bc7836cb82439a4d1de1a55d6378bdfb773d3034e71a731c02f202d52f93d3d
160 Risk Score

Malware Insights

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

The file is a PDF that leverages XFA forms to exploit CVE-2010-0188 in Adobe Reader, a critical vulnerability allowing for client-side code execution. The embedded URL, while seemingly benign, is present within the context of exploit code, suggesting it might be related to payload delivery or C2 infrastructure. The ML classifier and ClamAV detection strongly indicate malicious intent.

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.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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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