f558343f4693c151f9416b20cded176e1da4e6ebc133eb526d1dd5f5fdf596f0

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
14/10/2026, 22:52

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General

Target
MEIPreload/CPFilters.dll
Size 862KB
Sample261014-2tesnatwcx
SHA256 f558343f4693c151f9416b20cded176e1da4e6ebc133eb526d1dd5f5fdf596f0
MD5 6b9d1597fd7c350d3cc9e86c76a204ce
SHA1 a1213a4a4b875572f5ff2d4787cea50e3d350eec
SHA512 9d83e3e9c3e90d363efa61b7803a607982fd74045f5ddb1fcdbf7af70f4901b3dc6e861fe9d88a867d4c53c220423d9ff09feae8c58bc3852ea4b38cc72efff4
SSDEEP 24576:prij+VQYnP8DzPZSw1kPAxhN+u2L7KOy4:AjAQYnP8hD1BSJn0
TLSH
T1A8156B56EAEC81A4C06AD13DE6E69216FBB23C07170646FB42604B5E7F37AF45A3D310
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

persistence privilege_escalation

Malware Config

Signatures

Event Triggered Execution: Component Object Model Hijacking 1 TTPs
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
persistence privilege_escalation

Component Object Model Hijacking
T1546.015

Modifies registry class 38 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{76B4FCAC-BB29-11DB-96F1-005056C00008}\FriendlyName = "ETFilter"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{76B4FCAC-BB29-11DB-96F1-005056C00008}\CLSID = "{76B4FCAC-BB29-11DB-96F1-005056C00008}"	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{09144FD6-BB29-11DB-96F1-005056C00008}\FilterData = 02000000000060000000000000000000	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4A56AF32-C21F-11DB-96FA-005056C00008}\Instance\PBDA ETFilter\FilterData = 02000000000020000000000000000000	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{76B4FCAC-BB29-11DB-96F1-005056C00008}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{89C2E132-C29B-11DB-96FA-005056C00008}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{76B4FCAC-BB29-11DB-96F1-005056C00008}	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{76B4FCAC-BB29-11DB-96F1-005056C00008}\FilterData = 02000000000020000000000000000000	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{09144FD6-BB29-11DB-96F1-005056C00008}\CLSID = "{09144FD6-BB29-11DB-96F1-005056C00008}"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{DA4E3DA0-D07D-11d0-BD50-00A0C911CE86}\Instance\{4A56AF32-C21F-11DB-96FA-005056C00008}\Merit = "6291456"	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4A56AF32-C21F-11DB-96FA-005056C00008}\Instance\PBDA DTFilter\FilterData = 020000000000600002000000000000003070693300000000000000000800000000000000000000003074793300000000a0010000b00100003174793300000000c0010000b00100003274793300000000d0010000b00100003374793300000000e0010000b00100003474793300000000a0010000f00100003574793300000000c0010000f00100003674793300000000d0010000f00100003774793300000000e0010000f00100003170693308000000000000000e00000000000000000000003074793300000000c0010000000200003174793300000000c0010000100200003274793300000000a0010000200200003374793300000000a0010000300200003474793300000000a0010000400200003574793300000000a0010000500200003674793300000000a0010000600200003774793300000000e0010000700200003874793300000000e0010000800200003974793300000000e0010000900200003a74793300000000a0020000b00200003b74793300000000a0020000c00200003c74793300000000a0020000d00200003d74793300000000a0020000e00200006175647300001000800000aa00389b7128bdad46d06f964793b2155c51dc048d7669647300001000800000aa00389b71898a8bb849b0804cadcf5898985e22c16c175f45064bce479aef8caef73df7b5d0c4c4c449002b4e98fb9537f6ce516d26806de046dbcf11b4d100805f6cbbea4832363400001000800000aa00389b7181eb36e44f52ce119f530020af0ba7702c806de046dbcf11b4d100805f6cbbea2b806de046dbcf11b4d100805f6cbbea0016000000001000800000aa00389b710216000000001000800000aa00389b715be592c82d25b542a316d997e7a5d995b088d91efc3f23458725347beec1a8a079859f4af86b92438a6dd2dd09fa786120806de046dbcf11b4d100805f6cbbeae3762af70aebd011ace40000c0cc16bac3cbff34b3d571419002d4c60301697f7dd69d05552e414d8d1b01f5e4f50607286ddc36a6f1164290489cfcefeb5eba	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{76B4FCAC-BB29-11DB-96F1-005056C00008}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{89C2E132-C29B-11DB-96FA-005056C00008}\CLSID = "{89C2E132-C29B-11DB-96FA-005056C00008}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{DA4E3DA0-D07D-11d0-BD50-00A0C911CE86}\Instance\{4A56AF32-C21F-11DB-96FA-005056C00008}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{DA4E3DA0-D07D-11d0-BD50-00A0C911CE86}\Instance\{4A56AF32-C21F-11DB-96FA-005056C00008}\CLSID = "{4A56AF32-C21F-11DB-96FA-005056C00008}"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{09144FD6-BB29-11DB-96F1-005056C00008}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{09144FD6-BB29-11DB-96F1-005056C00008}	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{89C2E132-C29B-11DB-96FA-005056C00008}\FilterData = 02000000000020000000000000000000	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{76B4FCAC-BB29-11DB-96F1-005056C00008}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{DA4E3DA0-D07D-11d0-BD50-00A0C911CE86}\Instance\{4A56AF32-C21F-11DB-96FA-005056C00008}\FriendlyName = "PBDA CP Filters"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4A56AF32-C21F-11DB-96FA-005056C00008}\Instance\PBDA ETFilter	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{09144FD6-BB29-11DB-96F1-005056C00008}\FriendlyName = "Decrypt/DeTag"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{DA4E3DA0-D07D-11d0-BD50-00A0C911CE86}\Instance	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4A56AF32-C21F-11DB-96FA-005056C00008}\Instance\PBDA PTFilter	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4A56AF32-C21F-11DB-96FA-005056C00008}\Instance\PBDA ETFilter\CLSID = "{76B4FCAC-BB29-11DB-96F1-005056C00008}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{09144FD6-BB29-11DB-96F1-005056C00008}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{89C2E132-C29B-11DB-96FA-005056C00008}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{09144FD6-BB29-11DB-96F1-005056C00008}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4A56AF32-C21F-11DB-96FA-005056C00008}\Instance\PBDA PTFilter\FriendlyName = "PBDA PTFilter"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4A56AF32-C21F-11DB-96FA-005056C00008}\Instance\PBDA PTFilter\CLSID = "{89C2E132-C29B-11DB-96FA-005056C00008}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4A56AF32-C21F-11DB-96FA-005056C00008}\Instance\PBDA DTFilter	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4A56AF32-C21F-11DB-96FA-005056C00008}\Instance\PBDA PTFilter\FilterData = 02000000000020000000000000000000	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4A56AF32-C21F-11DB-96FA-005056C00008}\Instance\PBDA DTFilter\FriendlyName = "PBDA DTFilter"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4A56AF32-C21F-11DB-96FA-005056C00008}\Instance\PBDA DTFilter\CLSID = "{09144FD6-BB29-11DB-96F1-005056C00008}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{89C2E132-C29B-11DB-96FA-005056C00008}\FriendlyName = "Protected Tuner"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4A56AF32-C21F-11DB-96FA-005056C00008}\Instance\PBDA ETFilter\FriendlyName = "PBDA ETFilter"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{89C2E132-C29B-11DB-96FA-005056C00008}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{89C2E132-C29B-11DB-96FA-005056C00008}	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\MEIPreload\CPFilters.dll
1⤵
- Modifies registry class
PID:4228

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Component Object Model Hijacking

T1546.015

Privilege Escalation

Event Triggered Execution

T1546

Component Object Model Hijacking

T1546.015

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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