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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
153s
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 1.4MB
Sample260511-pf4teacz5k
SHA256 fd3a87c17acb89bf8b7af8257ed50e665142ef50949737a207043eefaf276b5e
MD5 7a74b84261bd3e89244b15ba006d3fce
SHA1 87c6947318c0708f7b96226083258e67586b796f
SHA512 0c8336294a697bb4719055545f9f035598bed7dee2fc80f4f68dcf7b7aa9773c95207945aa622ca354d806b3b26d4a3624230fb87ec5549b07560eab2315add5
SSDEEP 12288:IBv3KiROpoB86I9bYSrb7QPn/CB6ZvxQ7tP+KXPHgA9dEYN3YazDfbjP:IBvahpj8/CEzQ7h59dp3Yaf
TLSH
T167654A41BB88D172E80D15778DFDC2F82676F861AC99979B3285633FBC331805F58A26
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:4352

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

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