Malicious PDF — malware analysis report

Static analysis result for SHA-256 36d4a4028a5d4511…

MALICIOUS

PDF

73.3 KB
MD5: 50d427a5e994157bb197d12e3a4215ff SHA-1: 75b1170ac68626fe75372a2da6387d13003223b5 SHA-256: 36d4a4028a5d4511768fe9aea1c97f99d4181c86e8056a0000d23a578dcf4349
188 Risk Score

Malware Insights

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

The sample is a PDF file that exploits the CVE-2010-0188 vulnerability in Adobe Reader, leveraging XFA forms and embedded scripts. The embedded script payload, approximately 74KB in size, is likely responsible for executing the exploit. The presence of the XFA form and the specific CVE firing strongly indicate exploitation for client execution.

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_0000034e.bin
67f2f52e9d78576ff6a7efc6bdf8fa930fab9a9334fcfbc5ba14f3245fac774a		 pdf-embedded-script PDF raw stream script payload at offset 0x34E 74342 bytes

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