Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bdeac385874d45e…

MALICIOUS

PDF

12.7 KB
MD5: 54e7a05eff92ea3c0267fcc4cb510cc3 SHA-1: 6c0b099e14c272ca422ec9d8aa9d1b723792e00a SHA-256: 1bdeac385874d45e270b5fe8c093256e47bf915b38508804c0fe2fcdd9b29789
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 that triggers a critical heuristic for CVE-2010-0188, an XFA form exploit in Adobe Reader. Additionally, ClamAV detected it as Js.Exploit.HTML-30, indicating a JavaScript-based exploit. The embedded URL, while seemingly benign, is part of the exploit chain. The XFA form structure and the detected exploit strongly suggest this file is designed to execute arbitrary code upon opening in a vulnerable reader.

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/