Analysis
- max time kernel
148s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
29/07/2026, 12:22
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
FireFox-uninstaller.exe
Resource
win10v2004-20260513-en
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
FireFox-uninstaller.exe
Resource
win11ltsc2024-20260709-en
8 signatures
150 seconds
General
- Target FireFox-uninstaller.exe
- Size 20KB
- Sample260729-pkafcswtcs
- SHA256 8ea0168c63dadbd2184dad1ecdfac0d6f213607b9dd9e65d0dcfd0314548921c
- MD5 fd7c261fdc4d9cdc7f8017a005467a91
- SHA1 183a16813658210aa11f2a94eb4eed989b84999a
- SHA512 dc9df5c088e2f71d4e2e3dfc0e16afe6a51ffb763d958cabfbae4bb7e4d29836e89a3266e12e2c337e6ced466c238fec757350e993b1387a657a73e5845c9090
- SSDEEP 384:HW+T8nGAnH4W7Y3Ebl0dbU5k9Vng6LBA0:2IAX26Ty9tgkK0
- TLSH T12392D701E7FF0390F1BF0BB958B62385CA71B4CAD812C79E0658915C0EB2A41AF65F63
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
Malware Config
Signatures
- Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\system32\drivers\etc\hosts FireFox-uninstaller.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4596 set thread context of 4044 4596 FireFox-uninstaller.exe 89 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 2 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 5816 cmd.exe 852 cmd.exe - Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 4596 FireFox-uninstaller.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4596 FireFox-uninstaller.exe - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4596 wrote to memory of 4044 4596 FireFox-uninstaller.exe 89 PID 4596 wrote to memory of 4044 4596 FireFox-uninstaller.exe 89 PID 4596 wrote to memory of 4044 4596 FireFox-uninstaller.exe 89 PID 4596 wrote to memory of 4044 4596 FireFox-uninstaller.exe 89 PID 4596 wrote to memory of 4044 4596 FireFox-uninstaller.exe 89 PID 4596 wrote to memory of 5816 4596 FireFox-uninstaller.exe 90 PID 4596 wrote to memory of 852 4596 FireFox-uninstaller.exe 92 PID 5816 wrote to memory of 4228 5816 cmd.exe 94 PID 852 wrote to memory of 5092 852 cmd.exe 95 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\FireFox-uninstaller.exe"C:\Users\Admin\AppData\Local\Temp\FireFox-uninstaller.exe"1⤵
- Drops file in Drivers directory
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4596 -
C:\Windows\System32\conhost.exeC:\Windows\System32\conhost.exe2⤵PID:4044
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "GoogleUpdateTaskMachineQC" /f2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:5816 -
C:\Windows\System32\reg.exereg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "GoogleUpdateTaskMachineQC" /f3⤵PID:4228
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /delete /f /tn "GoogleUpdateTaskMachineQC"2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:852 -
C:\Windows\System32\schtasks.exeschtasks /delete /f /tn "GoogleUpdateTaskMachineQC"3⤵PID:5092
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