PDF malware analysis — malicious · a431ba1064d4f187

MALICIOUS

PDF

4.2 KB

MD5: 2b9c773e38db9f3264a43f8c7389b468 SHA-1: a25ccf0087d2d1a46abee9ddcbc740cf5df92ba3 SHA-256: a431ba1064d4f1873276ee897e6b84527839c01e8868823daaf67819eb55dfac

128 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The critical heuristic firing for CVE-2010-0188 indicates this PDF exploits a known vulnerability in Adobe Reader. The ML classifier strongly supports a malicious verdict. The embedded file and script payload heuristics further suggest the PDF is designed to deliver and execute malicious code. The primary attack vector is likely the exploitation of the LibTIFF component within Adobe Reader.

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` `1c12482ba8c8a7a23cae4c4a6ee58aefec46feaee0fcdb24d7020d46e7467ecf`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12948 bytes

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