Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dcd77306d8881e0…

MALICIOUS

PDF

12.8 KB
MD5: 3f158ba182598a722b94d456f6ee1e0f SHA-1: 92b1233ff878837585c4e532b519041f18b78de0 SHA-256: 2dcd77306d8881e0b2df42cf6ef6ec4c1b7210616e4080fb56543f3d32fbef18
188 Risk Score

Malware Insights

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

The PDF file contains an XFA form that leverages the CVE-2010-0188 exploit, targeting Adobe Reader. An embedded script payload within the XFA form is detected, indicating the execution of malicious code. The script likely downloads and executes a second-stage payload, although its exact function is obscured by the XFA structure.

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_00000384.bin
00a60f44e5792a1fe122eb77dd7c70849039167db6c2031fad53b241eff786a0		 pdf-embedded-script PDF raw stream script payload at offset 0x384 12312 bytes

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