Malicious PDF — malware analysis report

Static analysis result for SHA-256 6842a1b13670104d…

MALICIOUS

PDF

99.8 KB
MD5: 0f3d261f438b7b1c611b25ec41ba136e SHA-1: fc16272d227821532f8e8ac5db708c522b1dd92f SHA-256: 6842a1b13670104d3134cf959c2c075ac96a70d16cf440e2ef2c9bd55a8482e4
116 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload and triggers the CVE-2010-0188 exploit, indicating it is designed to execute arbitrary code. The ML classifier strongly flags this PDF as malicious. While no specific family is identified, the exploit suggests a downloader or dropper functionality.

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.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • 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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
343e9b3af3957fa2caa9c8a3639a086a9615c58c9e56ab828218b40232f9b43b
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101410 bytes