Malicious PDF — malware analysis report

Static analysis result for SHA-256 62817085d4911a0d…

MALICIOUS

PDF

16.3 KB
MD5: 7daa000ccd8511e88e4200bb33eb35ae SHA-1: 9d198bea2686243aead84ee746bf32580dd4ac10 SHA-256: 62817085d4911a0dfa630a6a8c9bea103b158a386f0e237db51a74ae5c584600
168 Risk Score

Malware Insights

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

The sample is a PDF document that exploits the CVE-2010-0188 vulnerability in Adobe Reader. The embedded XFA script contains obfuscated JavaScript, likely intended to download and execute a second-stage payload. The script's complexity and the critical heuristic firings indicate a high likelihood of malicious intent.

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
bde640a970c31d827d932d08ef417c0ea2442ea1f344fc4a137431c0002809c8
pdf-embedded-script PDF raw stream script payload at offset 0x359 15942 bytes