PDF malware analysis — malicious · edd112e25136e244

MALICIOUS

PDF

4.2 KB

MD5: cb6bf9cfffab435adaa7962f9a01f15e SHA-1: 7f41a44372f2d0ab8b9c18e2ad864243ee5b6c19 SHA-256: edd112e25136e244cd1493720c3e95d058afc6a2b6588a7aabc8d5426244e1e3

126 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1204.002 Malicious Link: Clickjacking

This PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader, specifically targeting the LibTIFF component within XFA forms. The critical heuristic firing confirms the exploit and indicates that a decoded XFA payload was found. The ML classifier strongly flags this as malicious. The embedded file and script payload further support the malicious nature of the document, likely serving as a dropper for further malicious activity.

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` `5e960f1ff889eee83e11eaa9522e330cf881e87ac091755ef6c2d805d4e42e6e`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12926 bytes

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