Malicious PDF — malware analysis report

Static analysis result for SHA-256 17ca8f7e8a8c8a3c…

MALICIOUS

PDF

12.7 KB
MD5: ef31d8e8346f830176b56c0369e9f427 SHA-1: a610f0d2d60a91693751f67c9ba5d3bc12577cea SHA-256: 17ca8f7e8a8c8a3cdffede37d386992a3438c8f71e5b83cd661051b54d5473fb
168 Risk Score

Malware Insights

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

The PDF file contains an embedded XFA form and triggers the CVE-2010-0188 exploit, which is known to target Adobe Reader. The embedded script, identified as JavaScript, is likely responsible for executing the exploit payload. The script's content is heavily obfuscated, but its presence and the exploit firing strongly indicate 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_00000384.bin
c6df9b590e3612b54951de2fea5b3404526ba8799e1e95d16f30ba8bb1b28b48
pdf-embedded-script PDF raw stream script payload at offset 0x384 12276 bytes