PDF malware analysis — malicious · 15c76fb7b072e8e6

MALICIOUS

PDF

79.2 KB

MD5: f28945609bfe3d444008edf4b4475539 SHA-1: 2f178f0f26b7e18e737db979a3df50c695563df4 SHA-256: 15c76fb7b072e8e6dc9b11a2e816316f3fcd742606e2827b3944a5998d44298c

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

This PDF document contains an exploit for CVE-2010-0188, a known vulnerability in Adobe Reader's handling of XFA forms. The exploit is embedded within the document's streams and is designed to achieve arbitrary code execution. The ML classifier strongly indicates malicious intent, and the presence of an exploit points to a downloader or dropper functionality.

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` `884f91a677bce199b433778313bf6361c9c87d913c5e5739b3c738893a24e08b`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	80327 bytes

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