Malicious PDF — malware analysis report

Static analysis result for SHA-256 801609299ae43b24…

MALICIOUS

PDF

102.0 KB
MD5: f4c8a025be68b5bce7a3ed6da2f180e7 SHA-1: 3dd060634ab8dce7e0392b5e4dfacfbfbf18dfa6 SHA-256: 801609299ae43b24dc4a9417c693be19f5be3c7bdab5068149a5b9412828ac72
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 detection for CVE-2010-0188, which exploits a vulnerability in Adobe Reader's handling of XFA forms. An embedded JavaScript script was found within the XFA form, indicating an attempt to execute arbitrary code. The script's content is heavily obfuscated but suggests the execution of a second-stage payload.

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
363abee35075281b744761853e9a8bfb24609eb1155b18f21b2c03661abc86cc
pdf-embedded-script PDF raw stream script payload at offset 0x346 103726 bytes