Malicious PDF — malware analysis report

Static analysis result for SHA-256 995ee84f40172177…

MALICIOUS

PDF

24.1 KB
MD5: 3bdc3fe0956b2146e66638ecd65892bb SHA-1: d2c48502625c6ba9fcef9e7497d726184b471422 SHA-256: 995ee84f40172177c2f1ee2ccd5def7e4ca117e96b8334b86222c916fd466a52
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1566.001 Phishing: Spearphishing Attachment

The sample is a PDF file identified as malicious by ClamAV and exhibits characteristics of an XFA form. Critical heuristics indicate the presence of the CVE-2010-0188 exploit targeting Adobe Reader's LibTIFF component. The embedded URL, while not directly malicious in reputation, is part of the XFA template structure and likely used in the exploit chain. No scripts were extracted, but the exploit itself is sufficient to classify the attack pattern.

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/