Malicious PDF — malware analysis report

Static analysis result for SHA-256 0acb896b75fe2f1b…

MALICIOUS

PDF

16.3 KB
MD5: f66e3bbad61796ad4c05a584d23c5d8b SHA-1: 3fb450d7460ecebcc6d9fc94788df6f14115585d SHA-256: 0acb896b75fe2f1b9f39cc5eb0a19706d888bdd4ee9de2f24af3aac56bf6c912
168 Risk Score

Malware Insights

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

The file is a PDF that leverages the CVE-2010-0188 vulnerability, which is known to exploit Adobe Reader's LibTIFF component. The embedded XFA script contains obfuscated JavaScript, likely intended to download and execute a second-stage payload. ClamAV also detected this as Pdf.Exploit.Agent-6136306-0, further confirming its malicious nature.

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_00000359.bin
531f584fbe2330a4c0f337eb9f1a73a9d74b57da35b68edcb0bf41c06b7d0dd5
pdf-embedded-script PDF raw stream script payload at offset 0x359 15911 bytes