Malicious PDF — malware analysis report

Static analysis result for SHA-256 384b7a58881a9610…

MALICIOUS

PDF

16.3 KB
MD5: 39d3432b8044b7a1f3d9292fe3d72bc7 SHA-1: 863c0dd7831f6f488c1319537c0116c89af5cc33 SHA-256: 384b7a58881a961091899ab8aa84c6980ce20025e3b9f8dffc07446907314ac8
188 Risk Score

Malware Insights

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

The PDF file contains an embedded XFA form which is known to be vulnerable to CVE-2010-0188, an exploit targeting Adobe Reader. The embedded script payload within the XFA form is likely responsible for executing the exploit, leading to arbitrary code execution. The ClamAV detection further confirms the malicious nature of the file.

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
50ab4ea2eaabab20261166cfe65e20b1cd364f46fe5cdbbbd263dbb9d73271fa		 pdf-embedded-script PDF raw stream script payload at offset 0x359 15928 bytes

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