Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ba81f58d5f26c33…

MALICIOUS

PDF

24.1 KB
MD5: 81f6f10920bea091ca13ddd0ab840c6c SHA-1: 9a6c99a3f832f20c1ea6d99747f2db0266a01efd SHA-256: 7ba81f58d5f26c33464b23ffe4fcb0bc56881e7efc2b9eb687915c1ea21db935
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution

The sample is a PDF file that utilizes XFA forms and exploits the CVE-2010-0188 vulnerability. This exploit is known to target Adobe Reader and is often used to download and execute a second-stage payload. The embedded URL, while seemingly benign, is part of the exploit's structure.

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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