Malicious PDF — malware analysis report

Static analysis result for SHA-256 186bae0624742b07…

MALICIOUS

PDF

99.8 KB
MD5: 4124672bbb1a7cb11710ae67cefea6e1 SHA-1: ad4e114842e8693717624c29045eb09a5e9b7eb8 SHA-256: 186bae0624742b076a8537c4e38bf873436bf70914eff61c575050988c2de1dd
116 Risk Score

Malware Insights

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

This PDF document exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. The exploit is embedded within the XFA form and is designed to execute arbitrary code. While no specific malicious URLs or scripts were directly extracted, the nature of the exploit suggests it's intended to download and execute a secondary payload, characteristic of a downloader or initial access exploit.

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
4a0ff52fc387534b2d0f645ef2d9c827183512052d3f20de4a1650649b793d89		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101438 bytes

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