Malicious PDF — malware analysis report

Static analysis result for SHA-256 15e6bd00fd9329be…

MALICIOUS

PDF

12.6 KB
MD5: 50e844242b6f057923293b9df57c4c36 SHA-1: 1adb66606254651d9b4077d17f81aa616217d0fb SHA-256: 15e6bd00fd9329bef297bdb4640ad9f42daa3ba831a091ec96d8394497b5ad6b
170 Risk Score

Malware Insights

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

The file is a PDF that exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. The embedded script, identified as JavaScript, is heavily obfuscated but its presence and the exploit indicate an attempt to execute arbitrary code. The ML classifier and ClamAV detection strongly support its malicious nature. The script's obfuscation prevents a confident determination of its specific actions beyond code execution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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
b8ca98dff3022a68c49a9e15e15f151cc2decc245b9a1d3a07be31a2f2230d8f
pdf-embedded-script PDF raw stream script payload at offset 0x359 12180 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).