Malicious PDF — malware analysis report

Static analysis result for SHA-256 8110c9a66879acf3…

MALICIOUS

PDF

99.3 KB
MD5: 9adc3bf9b1d127d0661af09f0a963b2a SHA-1: 09cc8999a4df14341cf2cfe23555ee531069de92 SHA-256: 8110c9a66879acf3a47f4f6832e1d70d9ab99623f372d6fa4af654b87b02a303
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's designed to execute arbitrary code. The ML classifier strongly flags this PDF as malicious. The exploit likely serves to download and execute a secondary payload, though no specific URLs for this purpose were extracted.

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
b42bb40f75601a846fe293be5acb9a303e9abd566821dff5c62e154011aa0a0b
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 100926 bytes