PDF malware analysis — malicious · 63400e3b2e169c16

MALICIOUS

PDF

78.9 KB

MD5: 56e0911e71338a03cc725a7dfd88d3dd SHA-1: 781cc56f96baf604e6b04a6922dd3a746473d5ea SHA-256: 63400e3b2e169c169f1e82be1fad62175ba3b36a474f2b2bef21761c8cba7c37

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF file is identified as malicious due to the critical heuristic firing for CVE-2010-0188, an Adobe Reader LibTIFF XFA image exploit. The embedded XFA form and script payload indicate an attempt to execute code upon opening the document. While no specific family is identified, the exploit's nature suggests it's designed to download and execute a secondary stage.

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.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `410fc108e5c0e3dc5e8757f6911612cc981f4f5d848beb1cce94d01ea170b44e`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	80011 bytes

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