Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b95d3378dcf2d18…

MALICIOUS

PDF

16.3 KB
MD5: 46a6723cd772957c60ee57ef97611faf SHA-1: b0b1df2ede126820b74b7ac9e33ba941827354db SHA-256: 5b95d3378dcf2d18873628f015c497348e549f0d4521126f375a7f098edbd6af
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 is known to affect Adobe Reader and allow for client execution. The embedded JavaScript, though truncated, is indicative of a malicious payload designed to be executed by the vulnerable reader. 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_00000359.bin
ddf9460d4e81bafa8370b1b5f26ad2f3220bdc18a7f84f60da314093f43d8225
pdf-embedded-script PDF raw stream script payload at offset 0x359 15926 bytes