Malicious PDF — malware analysis report

Static analysis result for SHA-256 726667111388b493…

MALICIOUS

PDF

16.3 KB
MD5: 7a35b0a3c6e2ae6f696f6151f1b1d3dc SHA-1: 7dbe955f6e52b89671cc2aabe937eb1998be286d SHA-256: 726667111388b49360be6583b9032be70b131791177e2b9b326c196afec18369
168 Risk Score

Malware Insights

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

This PDF file is identified as malicious due to the presence of an XFA form and an embedded script payload. Static analysis indicates it exploits the CVE-2010-0188 vulnerability in Adobe Reader, which is a critical finding. The embedded JavaScript, though truncated, suggests an attempt to execute arbitrary code, likely to download and run 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_00000359.bin
533a5887028fd1f9c95b773ce1ccfdcb07a6432d6e99ad9308969794822652d4
pdf-embedded-script PDF raw stream script payload at offset 0x359 15960 bytes