Malicious PDF — malware analysis report

Static analysis result for SHA-256 8608989bec159c69…

MALICIOUS

PDF

90.4 KB
MD5: 78916031fd9a00f449739f0f60623dd9 SHA-1: aa2cb685f190a3e014bd30600eeb0e3140bb3f25 SHA-256: 8608989bec159c694d4fe30464e65155589dcea403d4986336edb9e8fe457614
168 Risk Score

Malware Insights

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

The PDF file contains an embedded XFA form that exploits CVE-2010-0188, a known vulnerability in Adobe Reader. The embedded JavaScript attempts to deobfuscate and likely execute a second-stage payload. While the specific family is not identifiable, the exploit and script execution point to a malicious document designed for initial compromise.

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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000240.bin
f712096dbe1896c4fc3aea8de35281e2a26d1bb546e97d3a8b89c604498398dc
pdf-embedded-script PDF raw stream script payload at offset 0x240 91859 bytes