Malicious PDF — malware analysis report

Static analysis result for SHA-256 604e4ffa848783c8…

MALICIOUS

PDF

12.8 KB
MD5: 72e0e1134c83f3ee147f23cd69da1cbf SHA-1: f44f9f30ea9d828bb085ac2c5685748f9f074d0e SHA-256: 604e4ffa848783c86ef415d00345b82d3bf9f54b305e59d8cf67160054fdd01c
168 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains an embedded script that leverages the CVE-2010-0188 exploit targeting Adobe Reader's LibTIFF component. This exploit is designed to execute arbitrary code, indicating an attempt at client-side exploitation. The presence of XFA form elements and embedded script further supports this conclusion. The embedded URL, while confirmed benign, is part of the document's structure.

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_00000384.bin
f45ed8d92aec3ca40bc5ad91addb18123bce49f68b32b8d4dbd9b0d8ef9feccb
pdf-embedded-script PDF raw stream script payload at offset 0x384 12288 bytes