Malicious PDF — malware analysis report

Static analysis result for SHA-256 6815e06161e32b1b…

MALICIOUS

PDF

16.3 KB
MD5: ffccad3ee47dce83bbfc9a35b1c6fa0b SHA-1: 31a10fb5c9c3e1f373dfbb63370626412ad39c83 SHA-256: 6815e06161e32b1b273e0d839cd9c7e2ea13e189fc1614a3f573c389e84506e0
168 Risk Score

Malware Insights

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

The sample is a PDF document that exploits the CVE-2010-0188 vulnerability in Adobe Reader, which is designed to execute arbitrary code. The embedded JavaScript, though heavily obfuscated, is part of the exploit chain. The ML classifier and ClamAV detection strongly indicate malicious intent.

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
08f450ef1892731e1ffdfcc1ad83dec8655ae57c8401c32b669a209e5f81dd16
pdf-embedded-script PDF raw stream script payload at offset 0x359 15944 bytes