Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6be7af24f1bf682…

MALICIOUS

PDF

28.5 KB
MD5: a2a796781d7c32b8189645b9483a2730 SHA-1: 94ae9b0759d8f676f62cce233d5ea8fbd793a74c SHA-256: f6be7af24f1bf6827365d0741f82149b6001dcaf502854d5d9d4e2bf8d992818
170 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File T1059 Command and Scripting Interpreter

The sample is a PDF file that leverages the CVE-2010-0188 vulnerability via XFA forms to execute arbitrary code. The embedded XFA numeric stager and the decoded XFA payload strongly indicate an exploit attempt. The URL found within the document, while seemingly benign, is often used in conjunction with such exploits to fetch further malicious content. The decoded document body contains JavaScript-like code that appears to be part of the exploit's execution chain, potentially evaluating strings to construct commands or URLs.

Heuristics 6

  • 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-36825 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36825
  • 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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSEOF. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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/

Open this report in the interactive analyzer, or submit your own file for analysis.