Malicious PDF — malware analysis report

Static analysis result for SHA-256 62119db2916380e5…

MALICIOUS

PDF

16.3 KB
MD5: f1377c538ca658610bb98dee521ef052 SHA-1: 243d34ffd18aaf5a17fe729afd6514057191156f SHA-256: 62119db2916380e539506ea4221f3509f7ae1072dd0b9cb3b21a1b9db43b2c88
168 Risk Score

Malware Insights

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

The PDF file contains embedded XFA (XML Forms Architecture) data, which is exploited via CVE-2010-0188, a known vulnerability in Adobe Reader's LibTIFF processing. The embedded script, identified as JavaScript, is likely responsible for executing the exploit payload. While the script is truncated, its presence and the specific CVE exploit indicate a malicious intent to gain control of the user's system.

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
d176e2ae853daa3879cd34c93f16d334e57736726636fee47120c0334072c7e7
pdf-embedded-script PDF raw stream script payload at offset 0x359 15942 bytes