Malicious PDF — malware analysis report

Static analysis result for SHA-256 07b44ea965965a8b…

MALICIOUS

PDF

101.8 KB
MD5: 7a06546757b0ce13b44ef41215ac891d SHA-1: 38f059c68a69eff4f78a9422cd4cb7b24053b70e SHA-256: 07b44ea965965a8b3755d0061e34575945de92c2ccdf1f8ea22ef3067e282501
168 Risk Score

Malware Insights

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

The sample is a PDF file that leverages the XFA form functionality to exploit CVE-2010-0188 in Adobe Reader. Embedded JavaScript within the XFA payload is likely responsible for downloading and executing a second-stage payload. ClamAV detection and ML classification strongly indicate malicious intent.

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
1e91f9495978431c2134fab6e785866a63718c0f7548b02c4f24c760e38880bb
pdf-embedded-script PDF raw stream script payload at offset 0x346 103493 bytes