PDF malware analysis — malicious · 68fb4be6de867f70

MALICIOUS

PDF

99.6 KB

MD5: 352908ba658711de3dad30f4b772dead SHA-1: 400dcd0cb8f6f1e96cacb0032891766a1e8acdef SHA-256: 68fb4be6de867f70e1e486061176c7f7b1d588cf1044c04c5ea0c65805f9dd66

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains an embedded script payload and triggers the CVE-2010-0188 exploit for Adobe Reader. This exploit is known to facilitate arbitrary code execution, typically used to download and run further malicious content. The ML classifier strongly indicates maliciousness, and the embedded file suggests a secondary stage is present.

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` `3ea959c036aa1ae8e677f1ba5df0e678de8cd242f545c9c444dd5b1c7f894f21`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	101278 bytes

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