Malicious PDF — malware analysis report

Static analysis result for SHA-256 081e535826774428…

MALICIOUS

PDF

16.3 KB
MD5: 6544768abe22a1bd22f62bcd44d5f05b SHA-1: 4110249619d412ce199ad3c0c7e70bc34b5aec2a SHA-256: 081e535826774428fd9e9199102665af574070774e718f594d92e0f011342513
168 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by multiple heuristics, including a critical detection for CVE-2010-0188, which is an Adobe Reader exploit targeting XFA forms. An embedded JavaScript script was also found, which likely contains obfuscated code intended to download and execute a second-stage payload. The script's complexity and obfuscation suggest a deliberate attempt to evade detection.

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
57bd948a9fdd1828e11f16042608d19e1eadd453e22e5181f88cb134f30fc53c
pdf-embedded-script PDF raw stream script payload at offset 0x359 15926 bytes