Malicious PDF — malware analysis report

Static analysis result for SHA-256 a04bf484947616b6…

MALICIOUS

PDF

52.0 KB
MD5: 0b98d7def046cb75277adf923cab1ad1 SHA-1: 06bb6fd47b2308b701ed38df0ee7d5a4292e0c41 SHA-256: a04bf484947616b6dfd81091de912d5ed6d9022ec75e0c5ba4d893a527fe2584
188 Risk Score

Malware Insights

The PDF file contains an XFA form and triggers a critical heuristic for CVE-2010-0188, indicating exploitation of Adobe Reader. The embedded script payload further confirms malicious intent. The embedded URLs, while not directly malicious, are related to XFA forms, suggesting a lure or part of the exploit chain.

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_00000240.bin
134aaf7afd4cbe6e47a869e4b4fd9690623558b9fe2f281a760812e7bf5b0fa8		 pdf-embedded-script PDF raw stream script payload at offset 0x240 52473 bytes

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