Malicious PDF — malware analysis report

Static analysis result for SHA-256 65c10ab285623c0b…

MALICIOUS

PDF

16.3 KB
MD5: eae97f3e6272406932d9a043334e14b6 SHA-1: b844f8571c69535b920ca6d189c91938f486af3d SHA-256: 65c10ab285623c0b2c46e9a79cc46af92e1a0d6087c0e9371e61e9f7172afe38
168 Risk Score

Malware Insights

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

The sample is a PDF document that leverages the CVE-2010-0188 vulnerability, which is known to exploit Adobe Reader's LibTIFF component. The embedded JavaScript attempts to download and execute a second-stage payload, indicated by the heuristic firings and the structure of the script. The script's obfuscated nature and truncated content prevent a more detailed analysis of its exact actions.

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
e576e07ec3c33d8938959866b5e32df1233398810848564388c558e35387c9e1
pdf-embedded-script PDF raw stream script payload at offset 0x359 15926 bytes