Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9a6c479b4a38789…

MALICIOUS

PDF

12.6 KB
MD5: 3dce61ce3f89aec9d6e2928a11a94001 SHA-1: 3c5afc98d752bdf7a54f54864f640f5c6aced6c0 SHA-256: a9a6c479b4a3878915b309479930b38e5650f1f6d0722e80cfd58d91b68bf3d9
188 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains an embedded XFA script that leverages the CVE-2010-0188 vulnerability in Adobe Reader. This exploit is designed to execute arbitrary code upon opening the document. The embedded script is the primary mechanism for exploitation, likely leading to the download and execution of a secondary payload.

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
c20b531016f87e1583a84441b52211da295e3791c1a104956af6bef4b06df63b
pdf-embedded-script PDF raw stream script payload at offset 0x359 12173 bytes