Malicious PDF — malware analysis report

Static analysis result for SHA-256 5502b4ca30f449f6…

MALICIOUS

PDF

24.2 KB
MD5: cfa75ce87eb8c44c4e47186db833cdf5 SHA-1: 464f43da870595a9f4be68d92738111c1ea4c0b5 SHA-256: 5502b4ca30f449f6d33e8191b69d8543876fad10393958705bf7ca9e29e77153
130 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1190 Exploit Public-Facing Application

The sample is a PDF file that contains an XFA form, which is a known vector for exploiting Adobe Reader vulnerabilities. Critical heuristics indicate the presence of the CVE-2010-0188 exploit targeting LibTIFF within XFA content. This exploit is designed to achieve arbitrary code execution, commonly used to download and run further malicious stages. The embedded URL, while benign in reputation, is part of the XFA structure and may be related to the exploit's functionality.

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/