Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb5bf2a2bbd51fe6…

MALICIOUS

PDF

24.1 KB
MD5: f5acddd73a91ecfccad55136bbfed1c3 SHA-1: 66b01b49a671a5c6feb18b151d62b704116633b0 SHA-256: fb5bf2a2bbd51fe607b2b704a4bb0917922d9116cfacb9aed98798511080c4ed
130 Risk Score

Malware Insights

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

The sample is a PDF file that contains XFA form elements, which are known to be a vector for exploits. Static analysis identified a critical heuristic match for CVE-2010-0188, indicating an exploit targeting a vulnerability in Adobe Reader's handling of XFA forms. The embedded URL, while not directly malicious in reputation, is associated with XFA templates and likely part of the exploit chain. The ClamAV detection further confirms the malicious nature of the file.

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/