Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a0603b574880fff…

MALICIOUS

PDF

99.8 KB
MD5: e251b05e3d12d94fc5f012ec7080fe23 SHA-1: 4a3b56e0ad108efea9f1a248e2cf95e5e4dbdfa4 SHA-256: 7a0603b574880fff1e6faf0aa636be58b2c6c3ba12caca1bc441b89eaab07808
116 Risk Score

Malware Insights

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

The PDF file contains an embedded XFA form that triggers the CVE-2010-0188 exploit, a known vulnerability in Adobe Reader. This exploit is designed to execute arbitrary code, indicating the file's primary purpose is to compromise the user's system, likely by downloading and executing a second-stage payload. No specific malware family could be identified.

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
5e9394951d1e721471946aba0efefa121f56714188dd15dcb5c722654f91fd43		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101451 bytes

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