Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b2fa7b4614a5836…

MALICIOUS

PDF

24.1 KB
MD5: 82ba9e0d04a755b659aa8a4678ed4c7a SHA-1: 11a743aa25621fe7a3b13b6fbd9f2422416b0721 SHA-256: 8b2fa7b4614a58364e0a2606d625d3dc0d893235cb8c981ab06f9b04b61e9125
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 contains an embedded XFA form. Static analysis detected a critical vulnerability, CVE-2010-0188, related to Adobe Reader's LibTIFF handling within XFA forms. This exploit is designed to execute arbitrary code. The embedded URL, while seemingly benign, is part of the XFA template structure and may be used in the exploitation chain.

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/

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