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Overview

overview

3

Static

static

3

TCUI-App_1...M.appx

windows10-2004-x64

TCUI-App_1...M.appx

windows11-21h2-x64

TCUI-App.dll

windows10-2004-x64

1

TCUI-App.dll

windows11-21h2-x64

1

TCUI-App.exe

windows10-2004-x64

TCUI-App.exe

windows11-21h2-x64

clrcompression.dll

windows10-2004-x64

1

clrcompression.dll

windows11-21h2-x64

1

winsdkfb.dll

windows10-2004-x64

1

winsdkfb.dll

windows11-21h2-x64

1

winsdkfb.dll

windows10-2004-x64

1

winsdkfb.dll

windows11-21h2-x64

1

TCUI-App_1...f.appx

windows10-2004-x64

TCUI-App_1...f.appx

windows11-21h2-x64

TCUI-App_1...m.appx

windows10-2004-x64

TCUI-App_1...m.appx

windows11-21h2-x64

TCUI-App_1...r.appx

windows10-2004-x64

TCUI-App_1...r.appx

windows11-21h2-x64

TCUI-App_1...s.appx

windows10-2004-x64

TCUI-App_1...s.appx

windows11-21h2-x64

TCUI-App_1...n.appx

windows10-2004-x64

TCUI-App_1...n.appx

windows11-21h2-x64

TCUI-App_1...e.appx

windows10-2004-x64

TCUI-App_1...e.appx

windows11-21h2-x64

TCUI-App_1...g.appx

windows10-2004-x64

TCUI-App_1...g.appx

windows11-21h2-x64

TCUI-App_1...n.appx

windows10-2004-x64

TCUI-App_1...n.appx

windows11-21h2-x64

TCUI-App_1...s.appx

windows10-2004-x64

TCUI-App_1...s.appx

windows11-21h2-x64

TCUI-App_1...a.appx

windows10-2004-x64

TCUI-App_1...a.appx

windows11-21h2-x64

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20260130-en
resource tags

arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
11/05/2026, 12:17

Sharing

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Static task

static1

1 signatures

Behavioral task

behavioral1

Sample

TCUI-App_1.24.10001.0_ARM.appx

Resource

win10v2004-20260130-en

windows10-2004-x64

0 signatures

150 seconds

Behavioral task

behavioral2

Sample

TCUI-App_1.24.10001.0_ARM.appx

Resource

win11-20260130-en

windows11-21h2-x64

0 signatures

150 seconds

Behavioral task

behavioral3

Sample

TCUI-App.dll

Resource

win10v2004-20260130-en

windows10-2004-x64

0 signatures

150 seconds

Behavioral task

behavioral4

Sample

TCUI-App.dll

Resource

win11-20260130-en

windows11-21h2-x64

0 signatures

150 seconds

Behavioral task

behavioral5

Sample

TCUI-App.exe

Resource

win10v2004-20260130-en

windows10-2004-x64

0 signatures

150 seconds

Behavioral task

behavioral6

Sample

TCUI-App.exe

Resource

win11-20260130-en

windows11-21h2-x64

0 signatures

150 seconds

Behavioral task

behavioral7

Sample

clrcompression.dll

Resource

win10v2004-20260130-en

windows10-2004-x64

0 signatures

150 seconds

Behavioral task

behavioral8

Sample

clrcompression.dll

Resource

win11-20260130-en

windows11-21h2-x64

0 signatures

150 seconds

Behavioral task

behavioral9

Sample

winsdkfb.dll

Resource

win10v2004-20260130-en

windows10-2004-x64

0 signatures

150 seconds

Behavioral task

behavioral10

Sample

winsdkfb.dll

Resource

win11-20260130-en

windows11-21h2-x64

0 signatures

150 seconds

Behavioral task

behavioral11

Sample

winsdkfb.dll

Resource

win10v2004-20260130-en

windows10-2004-x64

0 signatures

150 seconds

Behavioral task

behavioral12

Sample

winsdkfb.dll

Resource

win11-20260130-en

windows11-21h2-x64

0 signatures

150 seconds

Behavioral task

behavioral13

Sample

TCUI-App_1.24.10001.0_language-af.appx

Resource

win10v2004-20260130-en

windows10-2004-x64

0 signatures

150 seconds

Behavioral task

behavioral14

Sample

TCUI-App_1.24.10001.0_language-af.appx

Resource

win11-20260130-en

windows11-21h2-x64

0 signatures

150 seconds

Behavioral task

behavioral15

Sample

TCUI-App_1.24.10001.0_language-am.appx

Resource

win10v2004-20260130-en

windows10-2004-x64

0 signatures

150 seconds

Behavioral task

behavioral16

Sample

TCUI-App_1.24.10001.0_language-am.appx

Resource

win11-20260130-en

windows11-21h2-x64

0 signatures

150 seconds

Behavioral task

behavioral17

Sample

TCUI-App_1.24.10001.0_language-ar.appx

Resource

win10v2004-20260130-en

windows10-2004-x64

0 signatures

150 seconds

Behavioral task

behavioral18

Sample

TCUI-App_1.24.10001.0_language-ar.appx

Resource

win11-20260130-en

windows11-21h2-x64

0 signatures

150 seconds

Behavioral task

behavioral19

Sample

TCUI-App_1.24.10001.0_language-as.appx

Resource

win10v2004-20260130-en

windows10-2004-x64

0 signatures

150 seconds

Behavioral task

behavioral20

Sample

TCUI-App_1.24.10001.0_language-as.appx

Resource

win11-20260130-en

windows11-21h2-x64

0 signatures

150 seconds

Behavioral task

behavioral21

Sample

TCUI-App_1.24.10001.0_language-az-latn.appx

Resource

win10v2004-20260130-en

windows10-2004-x64

0 signatures

150 seconds

Behavioral task

behavioral22

Sample

TCUI-App_1.24.10001.0_language-az-latn.appx

Resource

win11-20260130-en

windows11-21h2-x64

0 signatures

150 seconds

Behavioral task

behavioral23

Sample

TCUI-App_1.24.10001.0_language-be.appx

Resource

win10v2004-20260130-en

windows10-2004-x64

0 signatures

150 seconds

Behavioral task

behavioral24

Sample

TCUI-App_1.24.10001.0_language-be.appx

Resource

win11-20250619-en

windows11-21h2-x64

0 signatures

150 seconds

Behavioral task

behavioral25

Sample

TCUI-App_1.24.10001.0_language-bg.appx

Resource

win10v2004-20260130-en

windows10-2004-x64

0 signatures

150 seconds

Behavioral task

behavioral26

Sample

TCUI-App_1.24.10001.0_language-bg.appx

Resource

win11-20260130-en

windows11-21h2-x64

0 signatures

150 seconds

Behavioral task

behavioral27

Sample

TCUI-App_1.24.10001.0_language-bn.appx

Resource

win10v2004-20260130-en

windows10-2004-x64

0 signatures

150 seconds

Behavioral task

behavioral28

Sample

TCUI-App_1.24.10001.0_language-bn.appx

Resource

win11-20250619-en

windows11-21h2-x64

0 signatures

150 seconds

Behavioral task

behavioral29

Sample

TCUI-App_1.24.10001.0_language-bs.appx

Resource

win10v2004-20260130-en

windows10-2004-x64

0 signatures

150 seconds

Behavioral task

behavioral30

Sample

TCUI-App_1.24.10001.0_language-bs.appx

Resource

win11-20260130-en

windows11-21h2-x64

0 signatures

150 seconds

Behavioral task

behavioral31

Sample

TCUI-App_1.24.10001.0_language-ca.appx

Resource

win10v2004-20260130-en

windows10-2004-x64

0 signatures

150 seconds

Behavioral task

behavioral32

Sample

TCUI-App_1.24.10001.0_language-ca.appx

Resource

win11-20260130-en

windows11-21h2-x64

0 signatures

150 seconds

Report Analysis Logs

General

Target
winsdkfb.dll
Size 33KB
Sample260511-pf4teacz5k
SHA256 1fb18ce5e855ecfa535dece1433467bd74a65ac6aa343c78c888bcea834c55fa
MD5 071049767329dfd28f6f7bbce0daf201
SHA1 999f291b4a24c48508fa5e59ff3135dfb18bbce2
SHA512 4390cd4949115b3538ced580a3a35f393514849496d9503330f14d83969988476fb30d58c95d0ae31ad77cca4b9cef2715a478fdc2344e99a9b4d94e39bbaa09
SSDEEP 768:sTAtWISsdGgggqggg8ggAggTYUIw5xjcqQn+uJ6:gAt5SsdGgggqggg8ggAggcUIw5xji+26
TLSH
T15FF2A687E1C49EB1CD69293978124F12DB2AD682EA52D72FDB341C1EDD5F38CCE81261
MD5 SHA1 SHA512 SSDEEP TLSH

Score

1^/10

Malware Config

Signatures

Processes

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\winsdkfb.dll,#1
1⤵
PID:640

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

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