Malicious PDF — malware analysis report

Static analysis result for SHA-256 87b14df02808329b…

MALICIOUS

PDF

101.9 KB
MD5: c4ee181620b50b006ca411da5ae94719 SHA-1: 9f0fed029197c6c5175b6a6438082e3097d3deb7 SHA-256: 87b14df02808329b259622a13e1c6346b84743905ae26a875f792c9dc03f81a8
168 Risk Score

Malware Insights

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

The sample is a PDF file that contains an embedded XFA form and triggers the CVE-2010-0188 exploit. This exploit is known to target Adobe Reader and is used to execute arbitrary code. The embedded script, although truncated, appears to be JavaScript, further supporting the exploitation vector.

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
f3cceada6c9327e19d59c5945fbdad6aa4cf6d11b76eb7db83922fbff9d75791
pdf-embedded-script PDF raw stream script payload at offset 0x346 103663 bytes