Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9cde192594a2af3…

MALICIOUS

PDF

12.8 KB
MD5: b625592b34ecdc601a77668649a92d8d SHA-1: 2c739da104731472409675663d02c896a88d1baf SHA-256: b9cde192594a2af3554fd38dfc03d9c172a05d158968fa38af61f2ec71ceb8c7
128 Risk Score

Malware Insights

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

The sample is a PDF document that leverages XFA forms, triggering a critical heuristic for CVE-2010-0188, an exploit targeting Adobe Reader. Additionally, ClamAV detected it as Js.Exploit.HTML-30, indicating a JavaScript-based exploit. The embedded URL, while likely benign on its own, is associated with XFA templates and is included as a potential indicator. The primary attack vector appears to be exploiting a known vulnerability in PDF readers via crafted XFA 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: Js.Exploit.HTML-30 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Js.Exploit.HTML-30
  • 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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