Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f0c34f589e818d4…

MALICIOUS

PDF

12.7 KB
MD5: 6d32dc8c8c3613902f60fd89ed811c70 SHA-1: 3fe7bbab56509cc4db20fd2f3242833c52ab4b76 SHA-256: 0f0c34f589e818d471186a121f8230c76eb0f3769eea75ee49ebb1045c3f7119
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, as indicated by the 'CVE_2010_0188' heuristic firing. The embedded JavaScript, although obfuscated, is likely responsible for downloading and executing a second-stage 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_00000359.bin
7f61d7dc7ae1ab81299fc7b8f6f7466b24e0d6bf990bc6c1d4a1fd193cf8b1f2
pdf-embedded-script PDF raw stream script payload at offset 0x359 12279 bytes