Malicious PDF — malware analysis report

Static analysis result for SHA-256 11354b1701e72487…

MALICIOUS

PDF

16.3 KB
MD5: 468cb24cc37a2f38da3ff1ea1100de8a SHA-1: da7971b490d05cbaf14d37a190160d477a0367c6 SHA-256: 11354b1701e72487fd9094b78dca49630d9063df039abc04ff87ec75cd45fb98
168 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by multiple heuristics, including a critical alert for CVE-2010-0188, an Adobe Reader LibTIFF XFA image exploit. The embedded XFA script contains JavaScript that appears to be obfuscated and truncated, but its presence and the exploit indicate an attempt to execute arbitrary code. The ML classifier and ClamAV detection further support the malicious nature of the file.

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
d43f2a41c964bcfd14722cb48fed047737ac91ed986c14b969320af1c0635799
pdf-embedded-script PDF raw stream script payload at offset 0x359 15942 bytes