PDF malware analysis — malicious · 6883f4172c255ba0

MALICIOUS

PDF

79.0 KB

MD5: 5e83e15f9ca6837d640e2bc4d31bb784 SHA-1: 801b72f2be0f5604ae5d27f067a59a5c22aeab94 SHA-256: 6883f4172c255ba059c28e2f74cca2c1c99ea7a545cf59a655c3436304ac8ee9

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The file is a PDF document identified as malicious by an ML classifier. Static analysis detected the CVE-2010-0188 exploit targeting Adobe Reader's XFA forms, which is a known method for arbitrary code execution. The PDF also contains embedded script content, likely JavaScript, which is commonly used to download and execute further stages of an attack.

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` `c55577361a2ab4bf78a0109fd7db8a4b51b38a2f44d4437e1c85f6329471b15f`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	80167 bytes

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