Malicious PDF — malware analysis report

Static analysis result for SHA-256 0134e4f1a72b8c80…

MALICIOUS

PDF

16.2 KB
MD5: fc5e63998197e5ccc87555caed7fdf20 SHA-1: 814c33feeb2ddb05a124ceab56ba654b2dab2d7d SHA-256: 0134e4f1a72b8c80a55abbfacc25bde22a5e3bf8094dae0df98dcedcb87fc92b
180 Risk Score

Malware Insights

This PDF file exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. The embedded script, though heavily obfuscated and truncated, likely contains logic to download and execute a second-stage payload. The ML classifier and ClamAV detection 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
  • Embedded script payload in PDF stream medium 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.
  • 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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000359.bin
038e7309e090164a0a12957e839e6784c01121260710cb892b7d61f841d93aaf
pdf-embedded-script PDF raw stream script payload at offset 0x359 15901 bytes