Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5663909dedfb79f…

MALICIOUS

PDF

12.6 KB
MD5: 9c14f12939f61d5516b646ebfdec9fe9 SHA-1: e60b355b32e92e90f2c3588ea905127f46217c18 SHA-256: e5663909dedfb79f5bfe68888f8dd1386ba6e68f2282f685c9ff04ac0f9e9769
188 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

The sample is a PDF file that triggers critical heuristics for CVE-2010-0188, an Adobe Reader XFA exploit. The embedded script payload, which is also flagged as executable within the XFA form, likely contains the exploit code. The ClamAV detection further confirms its malicious nature. The embedded URL is likely related to the XFA template but does not appear to be a direct payload delivery URL.

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
82cacdf6e2bcb4c0c0307ea5a23905606a8eced24b8ec7069ada1a954ce21df2		 pdf-embedded-script PDF raw stream script payload at offset 0x359 12209 bytes

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