Malicious PDF — malware analysis report

Static analysis result for SHA-256 6be1decd9d832c24…

MALICIOUS

PDF

12.6 KB
MD5: d55ac1be8433679cabec27bded9af6c3 SHA-1: 86e1fdb4c87dc1b7d5f1452f0d966130757180ad SHA-256: 6be1decd9d832c2415854c0969d04c930cd7c95a993c18846f6f5e061bf5d58f
170 Risk Score

Malware Insights

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

The file is a PDF document that exploits the CVE-2010-0188 vulnerability in Adobe Reader, as indicated by the 'PDF_XFA' and 'CVE_2010_0188' heuristics. An embedded JavaScript payload was extracted, which is likely responsible for executing the exploit. The ML classifier and ClamAV also flagged this file as malicious, supporting the exploit execution finding.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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
aa45fbe4121925a5c00924c84fadb7b37e2f13c6d8cf8b127050f13c765a4c18
pdf-embedded-script PDF raw stream script payload at offset 0x359 12180 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).