Malicious PDF — malware analysis report

Static analysis result for SHA-256 212f146593076280…

MALICIOUS

PDF

24.2 KB
MD5: 0795b02308a2f67f87c3ec12b21953a8 SHA-1: fa516f801ffb3d5c24e38b8df2a8a1db34f5fe5d SHA-256: 212f146593076280eb1ce0ceaa7c67694cf3ec075a00a4c71ed42d628bc06101
128 Risk Score

Malware Insights

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

The sample is a PDF file that contains an XFA form, which is a known vector for exploiting vulnerabilities in Adobe Reader. Specifically, the CVE-2010-0188 heuristic indicates exploitation of the LibTIFF vulnerability within XFA. This exploit likely leads to the execution of a second-stage payload, as suggested by the ClamAV detection name 'Pdf.Exploit.Agent'. The embedded URL, while seemingly benign, is often used in conjunction with such exploits to download further malicious content.

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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