Malicious PDF — malware analysis report

Static analysis result for SHA-256 5de9ffa7c7266620…

MALICIOUS

PDF

103.7 KB
MD5: 4e77ac9f25ed0f9329ad180116f8f759 SHA-1: 3954b9512435f239311de733c1ebee1c5f9fd9b5 SHA-256: 5de9ffa7c72666205d0010bc689c3bbb45cf701d97c8791b0e15195a5a88a574
168 Risk Score

Malware Insights

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

The PDF file contains embedded XFA content that exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to LibTIFF processing. The embedded script, identified as JavaScript, is likely responsible for executing the malicious payload. ClamAV also detected this file as malicious, reinforcing the exploit-based attack vector.

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_00000346.bin
dbfa6a6c0e4c5aabb2042a8575dfc88407a0e3b596c99895036563eef2a831a4
pdf-embedded-script PDF raw stream script payload at offset 0x346 105501 bytes