Malicious PDF — malware analysis report

Static analysis result for SHA-256 31ea8abf59045d4b…

MALICIOUS

PDF

12.8 KB
MD5: ba7241ffb6fd301f3c900e25701d2b94 SHA-1: b2904a3a248771c047c4edfd441c6ffa345e1e92 SHA-256: 31ea8abf59045d4b9d94966e46a2a35cceb884ec67e18f78dd5263ee50e2507b
188 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File T1059 Command and Scripting Interpreter

The sample is a PDF file that leverages the CVE-2010-0188 exploit targeting XFA forms within Adobe Reader. An embedded script payload was detected, indicating the likely execution of malicious code. The embedded URL is likely part of the exploit chain or payload delivery mechanism.

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://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000359.bin
fe0c7923f384d3cfe2ac5f04b9ac99f7be837941449cd0144d2e8a431faa5ab0		 pdf-embedded-script PDF raw stream script payload at offset 0x359 12353 bytes

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