Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bb57d1eba41c162…

MALICIOUS

PDF

79.6 KB
MD5: 5b310125bacc114a1eb6c21e14b7daf1 SHA-1: 9f4f58e0435774897ace69fa31be703c563d00e0 SHA-256: 0bb57d1eba41c162ba944d54cd7bd5accc271539752f6c614b303085163e7a31
168 Risk Score

Malware Insights

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

This PDF file exploits the CVE-2010-0188 vulnerability, which targets Adobe Reader's LibTIFF component. The embedded JavaScript, though obfuscated, is designed to execute a second-stage payload. The ML classifier and ClamAV detection strongly indicate malicious intent, pointing towards exploitation for client execution.

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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000288.bin
2d6cbf656e6032d2aa7eab3511718678390dfb3622615842c1e4d7414f963cb6
pdf-embedded-script PDF raw stream script payload at offset 0x288 80766 bytes