PDF malware analysis — malicious · fe921c2ddc0aa444

MALICIOUS

PDF

4.2 KB

MD5: 25df397f583874a2b164855c60074efc SHA-1: dfcf45ba19231ad9714755a667e7c5308b4b879c SHA-256: fe921c2ddc0aa444c9df3da0931bcdeda44c3091b44e9157fe65f28983b391ad

128 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF file contains an embedded script payload and triggers a critical heuristic for CVE-2010-0188, indicating it exploits a vulnerability in Adobe Reader's LibTIFF component. The ML classifier also strongly flagged this PDF as malicious. The embedded file and XFA form are consistent with exploit delivery mechanisms.

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` `8a56502842328fbb7ef99dc00672e54924f92f50a87a7c5bb381fcbda7b7e087`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12856 bytes

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