Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec888bcf9740cdf1…

MALICIOUS

PDF

18.0 KB
MD5: 1cc130a40be21cca7971584aacc3d7cf SHA-1: 6da867a427c182755ea94dddb2023323dcc16e8a SHA-256: ec888bcf9740cdf151576eaac006aa315bf275a90d33f680ecb48d79cc5d7764
168 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 leverages XFA forms to deliver a payload. Heuristics indicate a critical vulnerability, CVE-2010-0188, related to XFA image exploitation. This suggests the document is designed to trick a user into opening it, leading to the execution of malicious code via the identified exploit. No scripts were extracted, but the PDF structure and exploit indicators are sufficient for this assessment.

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-36831 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36831
  • XFA numeric character-table eval stager high PDF_XFA_NUMERIC_EVAL_STAGER
    PDF XFA initialize script reads numeric form data from rawValue, maps the values through a short character table, and evals the reconstructed stage. This is an exploit-kit staging technique even when the final decoded layer remains encoded.
  • 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/