Malicious PDF — malware analysis report

Static analysis result for SHA-256 74dac8703ce93b96…

MALICIOUS

PDF

73.3 KB
MD5: e7cf5778284ff6f7ba1995c7802fbc8d SHA-1: ae22c860a5e8847b77e358caca09a63eea42c42b SHA-256: 74dac8703ce93b96069a454c360bbffd5a7f6a66dd2813616f8e1a75b30377c4
168 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains an XFA form that leverages the CVE-2010-0188 vulnerability in Adobe Reader. An embedded JavaScript payload is present, which is likely responsible for executing the exploit. The ML classifier and ClamAV detection strongly indicate malicious intent, pointing towards an exploit delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Embedded script payload in PDF stream low 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.
  • 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_0000034e.bin
42bc8622ca24428540ac729865fe813b0e467c1035a833a71f6a1cd03cd24b0c
pdf-embedded-script PDF raw stream script payload at offset 0x34E 74342 bytes