Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ad0ff710d49a2e5…

MALICIOUS

PDF

16.1 KB
MD5: d1336b4f1b162c9f56dcdecc73a9a2d6 SHA-1: 676e73aed0907e6d1b9ecc38dfc7b8623cad81a0 SHA-256: 9ad0ff710d49a2e5d30efdfb8f8fef602f071aee75ce02f78cc0a466cd730c9d
188 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment T1059 Command and Scripting Interpreter

The file is a PDF document that leverages the CVE-2010-0188 vulnerability in Adobe Reader's XFA form processing. Heuristics indicate an embedded script payload within an XFA form, strongly suggesting the execution of malicious code upon opening the document. The embedded URL is likely part of the exploit chain or a secondary 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_00000354.bin
02ff23956b8fe01e3865b9dd7018e8371322202a38da1da69495adffc830ce44
pdf-embedded-script PDF raw stream script payload at offset 0x354 15752 bytes