Malicious PDF — malware analysis report

Static analysis result for SHA-256 cef7795fabf4c5dd…

MALICIOUS

PDF

12.6 KB
MD5: 90938ca02df9a2d62ca6cd5a9ec7b170 SHA-1: f9eb3aa2e5a93147243e68750b7e80290c9e6c74 SHA-256: cef7795fabf4c5ddec7876f67a1c201668765851f5e8d4c4df2d4edea3cdff13
188 Risk Score

Malware Insights

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

The PDF file contains an XFA form with embedded script, which is being exploited via CVE-2010-0188 in Adobe Reader. The embedded script is likely responsible for downloading and executing a second-stage payload. The ClamAV detection 'Pdf.Exploit.Agent-6136306-0' further confirms its malicious nature.

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
25aff45ec57f2fb4ae5f12bac022dd2e8050d20765c8fdc9da637d32fe05571f		 pdf-embedded-script PDF raw stream script payload at offset 0x359 12209 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.