Malicious PDF — malware analysis report

Static analysis result for SHA-256 397a8607f8720895…

MALICIOUS

PDF

16.3 KB
MD5: 06da9e0933503ed1bc852512f5323430 SHA-1: 8d8b8501354b1a033bbe8263eda63a4e32a64700 SHA-256: 397a8607f8720895cc02b56707e20cc5e175f72ca9bf7d7a50cb8dccb5e0de17
188 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File T1566 Phishing T1566.002 Spearphishing Attachment T1190 Exploit Public-Facing Application

The PDF file contains an XFA form that exploits CVE-2010-0188 in Adobe Reader. This vulnerability is known to be used for delivering malicious payloads. The embedded script payload and the XFA structure strongly indicate an exploit attempt. The embedded URL is likely related to the exploit 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
bdbc9c60391c327fd7de10dd1a529ae95008ff1d0de85adb410fe1eabf8cd50c		 pdf-embedded-script PDF raw stream script payload at offset 0x359 15912 bytes

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