Malicious PDF — malware analysis report

Static analysis result for SHA-256 7647188084d6ebd4…

MALICIOUS

PDF

24.1 KB
MD5: 3aa55b7f848ac2ff34cb4e83962be4aa SHA-1: cd789eb10f222b1d2fb216f4da8c8e5d41a7a0a5 SHA-256: 7647188084d6ebd406cb03a6615feb16f98710ee88127b27e09a358507fedf3f
162 Risk Score

Malware Insights

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

The sample is identified as malicious due to critical heuristic firings indicating an exploit for CVE-2010-0188 within an XFA form. This exploit is designed to achieve client execution by leveraging a vulnerability in Adobe Reader's handling of LibTIFF images within XFA content. The embedded URL, while seemingly benign, is part of the XFA structure and could potentially be used in a broader attack chain.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSEOF. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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/