Malicious PDF — malware analysis report

Static analysis result for SHA-256 20ffc566a98af980…

MALICIOUS

PDF

111.2 KB
MD5: ec36740dced53e4557357fd3306402b6 SHA-1: 53f106de7cee3e7d86d0d5edc116bcb7c78eb432 SHA-256: 20ffc566a98af9805123ba62e30d601fec51ac1f9678e8e8c49a2d4601a3e303
190 Risk Score

Malware Insights

MITRE ATT&CK
T1204 User Execution

The PDF file utilizes XFA forms and contains an embedded script, indicating it is designed to exploit vulnerabilities. Specifically, the CVE-2010-0188 heuristic firing points to an exploit targeting Adobe Reader's LibTIFF component. The embedded script likely serves as the payload, executing malicious actions upon successful exploitation. The presence of multiple embedded URLs, though some are confirmed benign, suggests potential command and control or further payload delivery mechanisms.

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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000238.bin
c566aac5a6604b9e04d8a4b962de77567f27db6e92301ef601cf6cde450a76d9		 pdf-embedded-script PDF raw stream script payload at offset 0x238 113147 bytes

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