Malicious PDF — malware analysis report

Static analysis result for SHA-256 89269a73a2879826…

MALICIOUS

PDF

74.4 KB
MD5: 4fe5e90925aef2b8ce64a1be6851428d SHA-1: 5aa4e6f843acb4238e8b571e16b730b02d32f10f SHA-256: 89269a73a287982674f5a8b466e160236728f58c34deab68155169f626ef9f6f
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 alert for CVE-2010-0188, which exploits a vulnerability in Adobe Reader's LibTIFF component. An embedded JavaScript payload was detected, which is likely responsible for executing the exploit and potentially downloading further malicious content. The ML classifier also flagged this sample with high confidence.

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_0000034e.bin
cdd41fa160bb402764468f5dd3b988e7d59d5f66eaf3c1ea54779d3c596d70e7
pdf-embedded-script PDF raw stream script payload at offset 0x34E 75432 bytes