Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6a41205f57ab6cf…

MALICIOUS

PDF

24.1 KB
MD5: 7a15546a2a22b46bc2d145cab7c4db06 SHA-1: d45671972681629dfb3ec2c83a1a014fb8658acf SHA-256: c6a41205f57ab6cf7def0bfe4e52f8922f49ca4b0d8cbd25ed7d85a9c94d1b10
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1566.001 Phishing: Spearphishing Attachment T1203 Exploitation for Client Execution

The sample is a PDF file that leverages the CVE-2010-0188 vulnerability, which is a known exploit targeting Adobe Reader's handling of XFA forms. The heuristic firings confirm the presence of this exploit. The embedded URL, while not directly malicious in reputation, is part of the XFA template structure and is associated with the exploit delivery. The document body content is obfuscated and does not provide further context on the lure.

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/