Malicious PDF — malware analysis report

Static analysis result for SHA-256 f60c11b57f08efcc…

MALICIOUS

PDF

90.7 KB
MD5: 3d9ff5c4b012428a291a170c85663054 SHA-1: 1eda93009136acd67f86c1ae198484187dd96b03 SHA-256: f60c11b57f08efcc549699b754050dc1c09c803560d290b5a23467ee6e8a395c
188 Risk Score

Malware Insights

The file is a PDF document that leverages the CVE-2010-0188 vulnerability, a known exploit targeting Adobe Reader's handling of XFA forms. The heuristic firings confirm the presence of an XFA form with an embedded script payload, which is characteristic of exploit delivery. The embedded script is likely responsible for downloading and executing a second-stage payload, although its exact functionality is obscured by obfuscation. The ClamAV detection further solidifies 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://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_0000023e.bin
d3d03af9710e7b18c8e8501852588010354c4e196d602062ea1de0d7368bee69		 pdf-embedded-script PDF raw stream script payload at offset 0x23E 92189 bytes

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