Malicious PDF — malware analysis report

Static analysis result for SHA-256 21a5e7d24ac1d592…

MALICIOUS

PDF

24.0 KB
MD5: f5b2b20fae689907bba1d8b9661715e9 SHA-1: 631f1cea953895fc13273cebd6be4475e8b75735 SHA-256: 21a5e7d24ac1d592597431d779ef680ba32dc34db1f65053b8638c689c2c860f
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 Spearphishing Attachment

The sample is a PDF file that triggers a critical heuristic for CVE-2010-0188, an Adobe Reader LibTIFF XFA image exploit. This indicates the file is designed to exploit a known vulnerability in PDF viewers. The embedded URL, while not directly malicious in reputation, is associated with XFA templates, further supporting the exploit vector. No scripts were extracted from this sample.

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/