Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ffd6520fa18a543…

MALICIOUS

PDF

16.3 KB
MD5: f8055362989f28dd62c160ae5dcdd49e SHA-1: 7b5471cd1c5b8665b43d66a66296a5b7e2e3b97d SHA-256: 5ffd6520fa18a5436ab94e37b8e1553415e2e55d6f0ea905a24a65a3680fbdd2
168 Risk Score

Malware Insights

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

The sample is a PDF file that exploits the CVE-2010-0188 vulnerability, known to affect Adobe Reader's LibTIFF component. The embedded JavaScript, although heavily obfuscated and truncated, is indicative of a malicious payload designed to be executed upon opening the document. This points to a client-side exploitation attack.

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
82b9165691669a1e95e3b358f0493e0696be0c75593702b4278fe2c948da0d6f
pdf-embedded-script PDF raw stream script payload at offset 0x359 15928 bytes