Malicious PDF — malware analysis report

Static analysis result for SHA-256 102b133d2818fee9…

MALICIOUS

PDF

75.8 KB
MD5: 16f4dad5f2f6bde088f155554fd56a8d SHA-1: acde26d3c9a3a7fcf87c8fdd5c77814242c05fe5 SHA-256: 102b133d2818fee92efba631f70bb357a8cd07d101f0220428065d350ceee281
168 Risk Score

Malware Insights

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

This PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader, specifically targeting XFA forms. The embedded JavaScript, though obfuscated, is designed to execute a secondary payload. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for initial execution of further malware stages.

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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000286.bin
2b564054d5558d002d6c21e1308f9e32c6220d74dfb943fcbb16d55b911e448c
pdf-embedded-script PDF raw stream script payload at offset 0x286 76948 bytes