Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9b6cc5a593e8eb5…

MALICIOUS

PDF

12.6 KB
MD5: e0e4a9c6ce578e151af426ea2e400265 SHA-1: 760bc13cad3f6c499a09e0b74dd1cbc5992f933c SHA-256: b9b6cc5a593e8eb545c3696c087eaec253fae2e79d2512d9de55d384aae3c72e
190 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

This PDF file contains an XFA form that leverages the CVE-2010-0188 exploit in Adobe Reader. The embedded script payload, which is 12221 bytes in size, is likely responsible for executing the malicious activity. The embedded URL is likely part of the exploit chain.

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://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
7d7568009f5e8db59b0f5dd265ebbee59aae07ecf1963936dddfcf45d43fcdf5		 pdf-embedded-script PDF raw stream script payload at offset 0x359 12221 bytes

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