Malicious PDF — malware analysis report

Static analysis result for SHA-256 05d9492990635e2d…

MALICIOUS

PDF

12.6 KB
MD5: df58244ed962a01993150b3061f830a1 SHA-1: 3af86576d6b51ccb142750695b208c1e799a849c SHA-256: 05d9492990635e2dcab59fb71029446e92ab14e324f7ff05c25c4f169618ef9c
168 Risk Score

Malware Insights

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

The PDF sample contains embedded JavaScript and triggers a critical heuristic for CVE-2010-0188, an Adobe Reader exploit. This indicates the document is designed to leverage this vulnerability for client-side execution. The embedded script, though heavily obfuscated, likely contains the payload or instructions for downloading it.

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_00000359.bin
7abc67c1e04b16fa060e6e808d50c91216fafaff4998a0e8787d323a4358ea9d
pdf-embedded-script PDF raw stream script payload at offset 0x359 12185 bytes