PDF malware analysis — malicious · 5d3ef100136bffe1

MALICIOUS

PDF

99.8 KB

MD5: 601e22b6f8831c96cbb0c5c2072b2633 SHA-1: badda4811d6d3c5bf60103696cd341be35cf66ba SHA-256: 5d3ef100136bffe1ca8852784a4b1890f158c9b48dca06e1298485d44c8bbd4e

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF sample contains an embedded XFA form and triggers the CVE-2010-0188 exploit, which is known to target Adobe Reader. The exploit payload is decoded from a raw stream, indicating an attempt to execute arbitrary code. While no specific URLs or scripts were directly extracted for analysis, the presence of the exploit and embedded file strongly suggests a malicious intent to compromise the user's system.

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` `4ab18fc515f73f4e04525ee1e1ff5963730d6fef91c82e0d27a80440efebfae5`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	101412 bytes

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