PDF malware analysis — malicious · 09bab1936df974db

MALICIOUS

PDF

99.6 KB

MD5: 47a07f8c7a524f1cea68c4eaa1fc1c2c SHA-1: f76885c7efb6e1f01e8ebd575ea85a38322eb0a6 SHA-256: 09bab1936df974dbc8247ff7541acfd88d4466f62c5961f5c5d3b991924c536b

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The sample is a PDF file identified as malicious by an ML classifier and contains heuristics indicating the use of XFA forms and an embedded exploit targeting CVE-2010-0188. This exploit is designed to achieve arbitrary code execution within Adobe Reader. The embedded file and script payload markers suggest the PDF is intended to download and execute a secondary malicious payload.

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` `bf7f7e8c7ee7be10da98a2f89dea212126fa5e9438e8f8c2bac1e54cd6c2a084`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	101268 bytes

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