Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c42bba538f7de0f…

MALICIOUS

PDF

24.1 KB
MD5: 5f175322f8ef77504d883584d7076646 SHA-1: 0e6e78e26c1dffc1721665c977d6ad631612f557 SHA-256: 3c42bba538f7de0f58ab7e642ade0c09ebc905eb13a4701b486f911b979419c5
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment T1204 User Execution

The sample is a PDF file identified as malicious by ClamAV. Static analysis detected the use of XFA forms and a critical vulnerability, CVE-2010-0188, which is known to exploit Adobe Reader's LibTIFF component. This indicates the document is designed to exploit this vulnerability upon opening, likely leading to the download and execution of a secondary payload. The embedded URL, while seemingly benign, is part of the XFA structure.

Heuristics 4

  • 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
  • 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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