Malicious PDF — malware analysis report

Static analysis result for SHA-256 1269a3963d28e29b…

MALICIOUS

PDF

12.8 KB
MD5: 5ac4e858e9cd794b6ce55932449778bc SHA-1: 36b9b93d51e5cdcb0a282b6cb4952d13fe3310f1 SHA-256: 1269a3963d28e29b3849b848a32da71c98df3e9fea35c2042a8d9b401346c778
168 Risk Score

Malware Insights

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

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. The embedded script, likely JavaScript, is designed to download and execute a second-stage payload. ClamAV also detected this file as Pdf.Exploit.Agent-6136306-0, further indicating 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_00000384.bin
15d24d49f6ad5abbc7be400f603953ba4724e33aa930e4e62ee45eb1d320f9af
pdf-embedded-script PDF raw stream script payload at offset 0x384 12324 bytes