PDF malware analysis — malicious · 6f26cf09dd18b5b9

MALICIOUS

PDF

99.5 KB

MD5: 408f4699cfb28312fe6d36e9a90572a0 SHA-1: d1e360088a150a63a4c7fda23d1d681a9ee7fb48 SHA-256: 6f26cf09dd18b5b9ca52aaad59b6ddcdd8bf7af16d791a712c53f2d48ccef9a6

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file exploits CVE-2010-0188, a known vulnerability in Adobe Reader's handling of XFA forms, to achieve code execution. The embedded script payload and ML classifier strongly indicate malicious intent. The exploit likely serves to download and execute a secondary payload, though the specific nature of that payload cannot be determined from the provided evidence.

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` `c8665b76f659738164d40adb524c6da3e07cd77e7445500a8de38a241b33b9dc`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	101150 bytes

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