Malicious PDF — malware analysis report

Static analysis result for SHA-256 632718c2376656c3…

MALICIOUS

PDF

12.7 KB
MD5: 8f724b7f100c6c7dbba4efa553ad811f SHA-1: 565ae68170c4e2dac510417400a20165a0369f6a SHA-256: 632718c2376656c39975cc06d5d01320cc4ca511d1bdd1206fb2b5b878a42e49
168 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript and triggers a critical heuristic for CVE-2010-0188, indicating an exploit targeting Adobe Reader. The embedded script, although obfuscated, likely contributes to the execution of a malicious payload. The ML classifier and ClamAV detection further 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_00000384.bin
8de31807c4ea9477f02403f6a11bbedfe11dc83859b4db3f34c734752ca68ea9
pdf-embedded-script PDF raw stream script payload at offset 0x384 12276 bytes