Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f20f98d26de53ed…

MALICIOUS

PDF

102.4 KB
MD5: 874bbf4d0886aaf18325fae31c4a7e46 SHA-1: ac897172fc3c436a10f764051e5ed565913f88c7 SHA-256: 9f20f98d26de53ed831af1963cf4c0302157b34524c8e870da7d0b23ca1e9b4e
188 Risk Score

Malware Insights

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

The PDF file contains an XFA form with embedded script, triggering critical heuristics for CVE-2010-0188, an Adobe Reader exploit. This indicates the file is designed to execute arbitrary code upon opening in a vulnerable reader. The embedded script payload, though not fully detailed, is the likely mechanism for exploitation. The embedded URL is likely related to the XFA template but is not directly indicative of malicious activity.

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_00000346.bin
932e57a0b859c181e4023ade6675913784f92bc5dad89435c06cd06349b3b061		 pdf-embedded-script PDF raw stream script payload at offset 0x346 104099 bytes

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