Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e3c9279e664c55c…

MALICIOUS

PDF

101.9 KB
MD5: 3c36f7a3680e1670e8704b9cf0f0fc1c SHA-1: 9a9fdc8f0398c82a4e1a655820143aba164eefd9 SHA-256: 7e3c9279e664c55c0eb9832a14a40087788d2567205f234dcdfe22ad5786a67e
168 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by multiple heuristics, including a critical detection for CVE-2010-0188, which exploits Adobe Reader's LibTIFF component. An embedded JavaScript payload was extracted, indicating an attempt to execute arbitrary code. The ML classifier also flagged this PDF with high confidence. The embedded script likely downloads and executes 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_00000346.bin
c0bdfc2ab8bb89774a1772788dfa53b64a59f242ebe2b20e9ec494fd175890e6
pdf-embedded-script PDF raw stream script payload at offset 0x346 103569 bytes