PDF malware analysis — malicious · d9bfa911a9bd12e1

MALICIOUS

PDF

4.1 KB

MD5: f1fff43d4617ee3b1a9028d8acf890ab SHA-1: 42d7a6e4a179c7cb2252ce2cc2c64e1cb27969ab SHA-256: d9bfa911a9bd12e1dfcf3f10868422657a766c1d16aad44e5415a51188fe1b12

126 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The critical heuristic firing for CVE-2010-0188 indicates that this PDF exploits a known vulnerability in Adobe Reader. The embedded file and script payload heuristics further suggest that a malicious payload is being delivered. The ML classifier strongly supports a malicious verdict. No specific family could be identified.

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` `5580a07926b99c4fa40d9a55d8750404384eda8b5a70466f3ff8d74339ec3e05`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12801 bytes

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