Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f04505d922b2fb0…

MALICIOUS

PDF

102.0 KB
MD5: 778a6cb6e731dc38e13da052e6b37e1e SHA-1: 2b65a6546813248d3b74c44ce3df70f3d5a3b1d4 SHA-256: 6f04505d922b2fb028e22330f10a724bca9913a31fc1b0939d8a32aad88cac60
168 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains embedded XFA content which triggers the CVE-2010-0188 exploit, a known vulnerability in Adobe Reader. The embedded script, identified as JavaScript, is likely responsible for downloading and executing a second-stage payload. ClamAV also detected this file as malicious, confirming its suspicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Embedded script payload in PDF stream low PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • 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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000346.bin
d02c693b0f172c4189e5ecc842536ae3d493140e30e6c4f1f99cb1d388ded4e5
pdf-embedded-script PDF raw stream script payload at offset 0x346 103729 bytes