Malicious PDF — malware analysis report

Static analysis result for SHA-256 c028f5d330fec6af…

MALICIOUS

PDF

16.3 KB
MD5: c3ec96857dce452a9ec2731607f73806 SHA-1: eafd166737b31ab8e9f5ccfc5b7e283039b02e43 SHA-256: c028f5d330fec6af19908567cac455d639f20639a19d9a395e803f0441fe1a81
188 Risk Score

Malware Insights

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

The sample is a PDF file that leverages the CVE-2010-0188 vulnerability in Adobe Reader's XFA processing to execute an embedded script. This script is designed to exploit the vulnerability, likely leading to the download and execution of a secondary payload. The presence of XFA forms and embedded scripts strongly indicates a malicious intent to compromise the user's system.

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
7f0adc6512f6d18e57f212c3d571df3a1a17138e756acc69ff4a2458c04d849e		 pdf-embedded-script PDF raw stream script payload at offset 0x359 15926 bytes

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