Malicious PDF — malware analysis report

Static analysis result for SHA-256 9206b8dff270da3d…

MALICIOUS

PDF

79.7 KB
MD5: 3e671e7c6f80af5dd17ae3dc1248d19f SHA-1: 37fb01c22c7ed9f9271a5afbf305f68fd42b79b1 SHA-256: 9206b8dff270da3dff072b38d8e8bd945566a8acc813bf91e0f6eb33df4dbda4
188 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious Attachment T1566.001 Phishing: Spearphishing Attachment T1204 User Execution

The PDF file contains an XFA form which is exploited via CVE-2010-0188, a known vulnerability in Adobe Reader. An embedded script payload was detected within the XFA stream, indicating the file's intent is to execute malicious code. The embedded script is likely responsible for downloading and executing a second-stage payload, though its exact function is obscured by the exploit.

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_00000288.bin
0c2e6d91bcda4a58e8046bff3390286e3829fb8818bf586a650a23af035e44e8		 pdf-embedded-script PDF raw stream script payload at offset 0x288 80858 bytes

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