Malicious PDF — malware analysis report

Static analysis result for SHA-256 e407abab5263623d…

MALICIOUS

PDF

111.2 KB
MD5: 2a5a3259170f4b7802bd16ecbad95263 SHA-1: 397a353fcf3ce4a57764c7eaac6d4e554502d563 SHA-256: e407abab5263623d46b6be31217fc690bd4a2ff737d840bb2c7c2b2a34d0cd72
190 Risk Score

Malware Insights

The PDF file contains XFA (XML Forms Architecture) content, which is known to be a vector for exploits. Specifically, the 'CVE_2010_0188' heuristic indicates a critical vulnerability related to LibTIFF within Adobe Reader's XFA processing. The presence of an embedded script payload further supports the malicious nature of the file. The ClamAV detection 'Pdf.Exploit.Agent-6136306-0' confirms this assessment. The embedded URLs, while not directly malicious, are related to XFA specifications and are likely present for legitimate reasons within the form structure.

Heuristics 6

  • 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.
  • XFA form contains executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose dataset contains a <script> or <xfa:script> block — XFA scripting has been the exploit primitive for several Adobe Reader RCEs (CVE-2010-0188 family, CVE-2018-4901, and others). Plain XFA without scripts is far less risky.
  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • Embedded script payload in PDF stream medium 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.
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • 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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000238.bin
2901e4243ea7801b1b5bfcdb88c4c96c48168f3ff1a5e3b0ac11e7ee5f487b13
pdf-embedded-script PDF raw stream script payload at offset 0x238 113149 bytes