Malicious PDF — malware analysis report

Static analysis result for SHA-256 73e9e30746edadc2…

MALICIOUS

PDF

12.8 KB
MD5: b837bfa23d08e927c4ed34d676229100 SHA-1: 7507fb6cf42a37b418eaf4a8d9c1ef112c3ae8f2 SHA-256: 73e9e30746edadc2f0f5c5c89672fb48267c7a9ab7d2ffd864b532a4e3bd9209
168 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript and triggers the CVE-2010-0188 exploit, indicating it's designed to execute arbitrary code. The embedded script, although truncated, likely contributes to the exploitation process by interacting with the XFA form. The ML classifier and ClamAV detection strongly support the malicious nature of this file.

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_00000384.bin
6c4cc2cea32d1b8737059eff0d07ae7811e2f6622a782fbc97849d0f0b03f7c7
pdf-embedded-script PDF raw stream script payload at offset 0x384 12288 bytes