Malicious PDF — malware analysis report

Static analysis result for SHA-256 15fabc6b9d2ad830…

MALICIOUS

PDF

73.2 KB
MD5: f2a0e9f55b3fb41050fa4a4279ce0776 SHA-1: 5646e0ace3e62af1a115b967645e7cf8700b32b6 SHA-256: 15fabc6b9d2ad8308f69289908619209a2e9b07251f6f56ba8e0d2fab7845681
156 Risk Score

Malware Insights

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

The PDF sample contains XFA forms and triggers the CVE-2010-0188 exploit, indicating it's designed to execute arbitrary code on vulnerable Adobe Reader installations. The embedded script payload and XFA script firings suggest the exploit is used to download and run a secondary malicious component. No specific family could be identified.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • XFA form contains risky executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
  • 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
7baf43864665c4ae0c1abfe81c7771aa6cf0ea01aec522c34a115c7bbbd24b7b
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 74182 bytes