Malicious PDF — malware analysis report

Static analysis result for SHA-256 48ea4b65045b5f54…

MALICIOUS

PDF

90.0 KB
MD5: b97c03d280fa46a56670597dde174d0d SHA-1: 778ff05385dcd8549623264402d28990e2771416 SHA-256: 48ea4b65045b5f547f7e35e58d5590f712ceb960c425e4021c6344e0c31226a7
188 Risk Score

Malware Insights

The PDF file contains an XFA form that leverages CVE-2010-0188, an exploit targeting Adobe Reader. The embedded script within the XFA form is likely responsible for executing the malicious payload. ClamAV also detected this file as Pdf.Exploit.Agent-6136306-0, further confirming its malicious nature. The embedded URLs are related to XFA specifications but are 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://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
27d65ff73e784800fc8b9ce91967bdab3db7a608170b643094d68d4fd2a0b512		 pdf-embedded-script PDF raw stream script payload at offset 0x23E 91391 bytes

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