Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e2851777fa234ba…

MALICIOUS

PDF

12.6 KB
MD5: 82879b0fd309f7b0fe9fc272c51f6d38 SHA-1: d56b927bf20d6705a39f077f790f3e9431e8a326 SHA-256: 2e2851777fa234ba17fab581a660577ef98621e513f9b86c1ecb4480b878401c
188 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution

The sample is a PDF file that leverages the CVE-2010-0188 exploit targeting Adobe Reader's XFA functionality. An embedded script within the XFA form is identified as the payload delivery mechanism. This script is designed to exploit the vulnerability, likely leading to the download and execution of a second-stage payload.

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
5b0dcc58c9eec3cb4f779834cc357020206a6c4be4c4d8aa75024fb92b13b0c0		 pdf-embedded-script PDF raw stream script payload at offset 0x359 12209 bytes

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