Malicious PDF — malware analysis report

Static analysis result for SHA-256 1053a2dbbaa23039…

MALICIOUS

PDF

16.3 KB
MD5: a1654d18d6defd113517efea32b3a65a SHA-1: e1ba15824dde0524d10611b8b7717116b53a6bed SHA-256: 1053a2dbbaa230392dfb9b9585e58bfc866624398422b45b24499f37ded4621d
168 Risk Score

Malware Insights

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

The sample is a PDF document that leverages the CVE-2010-0188 vulnerability, known to affect Adobe Reader's LibTIFF component, to execute arbitrary code. An embedded JavaScript payload within the XFA form structure is responsible for this exploitation. The script's exact functionality is truncated, but its presence and the exploit firing indicate a malicious intent to compromise the user's system.

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
544e2b5fbbbbbbc07f254ba108218e919d3854790e9f9bd53e5c843bf3d44841
pdf-embedded-script PDF raw stream script payload at offset 0x359 15928 bytes