PDF malware analysis — malicious · 6c97e64983ec3edd

MALICIOUS

PDF

4.1 KB

MD5: 63cc3b2a7da80639af487d05e8cf446c SHA-1: a4c57a123fd629bcc65c42bd0f1d7915a4723b61 SHA-256: 6c97e64983ec3eddbe29e0a13e2c19b5c9de8bf3799a0710c9e63b2f1360e065

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF sample contains an embedded XFA form that triggers the CVE-2010-0188 exploit. This vulnerability allows for arbitrary code execution, which is commonly used to download and execute further malicious content. The ML classifier strongly indicates maliciousness, and the presence of an embedded script payload further supports this.

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/Z4J
- 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` `766511d76edf71cbbd10c51aa9d0e00c8da5378cdae33fbcd40078c8427e5a7b`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12830 bytes

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