Malicious PDF — malware analysis report

Static analysis result for SHA-256 0751469ae124f593…

MALICIOUS

PDF

16.1 KB
MD5: bdd29d14b1679856c8fac5044a7c4f1f SHA-1: f7c5a70172e334a376be64618a61607353a923ac SHA-256: 0751469ae124f59301862077b7c2283e58404d770df924179c2109cd585a5986
168 Risk Score

Malware Insights

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

The PDF file contains an embedded script that leverages the CVE-2010-0188 exploit, targeting Adobe Reader. The script's purpose is to download and execute a second-stage payload, as indicated by the heuristic firings and the nature of the embedded script. 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_00000354.bin
55c203dcf740f17237db498ab956050f31dabe27d1350e85e152e4fa81fb1dbe
pdf-embedded-script PDF raw stream script payload at offset 0x354 15752 bytes