PDF malware analysis — malicious · c96aac35ba90c5b6

MALICIOUS

PDF

4.1 KB

MD5: f1aa24e39029fa37873d0eb52c6d5c40 SHA-1: f3731e7e741f4c1fad0152d7809ae482cc686ef0 SHA-256: c96aac35ba90c5b64c3731e1fe8c149aff81b498fc69f2bda4141c5e44479037

126 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains critical heuristic firings indicating it exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. An embedded script payload was also detected. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be leveraging this exploit to achieve initial code execution, likely for downloading and executing further malicious content.

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` `feecdd4d8da5bafa1d5062799e5a3ebda2b9d2de4f51d7f77f0e4ae37eecfc1d`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12629 bytes

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