PDF malware analysis — malicious · af9c143cb80c7d78

MALICIOUS

PDF

4.2 KB

MD5: 2e6393ee94c27a95af982a24675bf053 SHA-1: fd49385a9ec991a54fb6b5ad661dc0fc248f5ee7 SHA-256: af9c143cb80c7d7815caf707da3c9b4118b4613f4803b1d84aa533b87ecc5c73

126 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1204.001 Malicious Link T1059.001 PowerShell T1071.001 Web Protocols

The PDF file contains an embedded exploit targeting CVE-2010-0188 in Adobe Reader, indicated by the critical heuristic firing. The ML classifier strongly flags this PDF as malicious. The embedded file and script payload markers suggest the PDF is designed to download and execute a secondary stage payload. The XFA form structure is also noted.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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 script payload in PDF stream medium 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 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `d0c6ac378b13e9f621e8dd6c3358cdc5f6f351edf0fd3151363c43cd1af8bf48`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12891 bytes

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