Malicious PDF — malware analysis report

Static analysis result for SHA-256 03a245570b3e7cd9…

MALICIOUS

PDF

73.4 KB
MD5: 11fc479275891dde3e8ddafc24bb158d SHA-1: e0db0107baa94670eccb9d6af9cfaceb4f84afb5 SHA-256: 03a245570b3e7cd999c2fb301589b94033279d46bb680d37e898679a7dd038fa
168 Risk Score

Malware Insights

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

The PDF sample contains an XFA form that triggers the CVE-2010-0188 exploit, as indicated by multiple critical heuristics. The embedded JavaScript, though obfuscated, is likely responsible for executing the exploit payload. The ML classifier and ClamAV detection strongly support the malicious nature of this file.

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
51f3fbc1f59853b85cef90e3e9ffa364ebeccff765b274b68a2ee6e0b5dcec79
pdf-embedded-script PDF raw stream script payload at offset 0x34E 74422 bytes