PDF malware analysis — malicious · 143ddfbc449b1cd5

MALICIOUS

PDF

99.8 KB

MD5: 0e3e3e4f26e6a25649c0da2cfd304935 SHA-1: c391ec87b97ace70ece7591a5e7679a050a32952 SHA-256: 143ddfbc449b1cd5d9dac11a018f2503a70cbb7ad27f9eceba59913407467a18

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF sample contains an XFA form and triggers the CVE-2010-0188 exploit, indicating it's designed to execute code upon opening in a vulnerable Adobe Reader version. An embedded script payload was also detected, suggesting the exploit is used to download and run a secondary malicious component. The benign URLs present do not detract from the critical exploit finding.

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` `ab0164f3178c341ed6753d420e8e02d94a9eedeffa44cfd75c0cbdc0b3183242`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	101484 bytes

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