Analysis
- max time kernel
82s - max time network
149s - platform
windows10_x64 - resource
win10-en - submitted
20/09/2021, 12:26
Static task
static1
Behavioral task
behavioral1
Sample
f6200b9b9789794de4a8d78f4ae96d22.exe
Resource
win7v20210408
0 signatures
0 seconds
General
- Target f6200b9b9789794de4a8d78f4ae96d22.exe
- Size 292KB
- Sample210920-pl66qaggdk
- SHA256 85f0af15d708b6a2ea67a30f2a858efc9f32af678a5633289c297f588443cd7a
- MD5 f6200b9b9789794de4a8d78f4ae96d22
- SHA1 1d18c71e7e4de5c6216653db5effba586345597c
- SHA512 5fd2e93293bf2ebe5b68e747dbed842c2f4fcd74dce883ffa7daa6daf647e41f4b1926fdf2f05048b3024609ef6805fb2a6b501c92335ab37098dfb6d4defa72
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
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xpertrat
Version
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3.0.10
Botnet
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Test
C2
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kapasky-antivirus.firewall-gateway.net:4000
Mutex
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L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0
Signatures
- XpertRAT Core Payload 1 IoCs
resource yara_rule behavioral2/memory/4764-513-0x0000000000401364-mapping.dmp xpertrat - NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral2/memory/4828-528-0x0000000000411654-mapping.dmp MailPassView - NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral2/memory/1600-536-0x0000000000442F04-mapping.dmp WebBrowserPassView - Nirsoft 3 IoCs
resource yara_rule behavioral2/memory/4828-528-0x0000000000411654-mapping.dmp Nirsoft behavioral2/memory/1600-536-0x0000000000442F04-mapping.dmp Nirsoft behavioral2/memory/1824-545-0x000000000040C2A8-mapping.dmp Nirsoft - Adds policy Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run iexplore.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe" iexplore.exe - Deletes itself 1 IoCs
pid Process 1016 notepad.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" f6200b9b9789794de4a8d78f4ae96d22.exe - Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000\Software\Microsoft\Windows\CurrentVersion\Run\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe" iexplore.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run iexplore.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe" iexplore.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" f6200b9b9789794de4a8d78f4ae96d22.exe - Program crash 3 IoCs
pid pid_target Process procid_target 1304 4796 WerFault.exe 82 1436 4860 WerFault.exe 86 4884 4876 WerFault.exe 88 - Suspicious use of SetThreadContext 10 IoCs
description pid Process procid_target PID 3388 set thread context of 4720 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 78 PID 4720 set thread context of 4764 4720 f6200b9b9789794de4a8d78f4ae96d22.exe 79 PID 4764 set thread context of 4784 4764 iexplore.exe 81 PID 4764 set thread context of 4796 4764 iexplore.exe 82 PID 4764 set thread context of 4828 4764 iexplore.exe 85 PID 4764 set thread context of 4860 4764 iexplore.exe 86 PID 4764 set thread context of 4876 4764 iexplore.exe 88 PID 4764 set thread context of 1600 4764 iexplore.exe 90 PID 4764 set thread context of 1672 4764 iexplore.exe 91 PID 4764 set thread context of 1824 4764 iexplore.exe 92 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 26 IoCs
pid Process 3888 powershell.exe 3584 powershell.exe 3928 powershell.exe 3584 powershell.exe 3928 powershell.exe 3888 powershell.exe 3888 powershell.exe 3584 powershell.exe 3928 powershell.exe 3032 powershell.exe 3032 powershell.exe 3032 powershell.exe 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 4720 f6200b9b9789794de4a8d78f4ae96d22.exe 4720 f6200b9b9789794de4a8d78f4ae96d22.exe 4784 iexplore.exe 4784 iexplore.exe 4720 f6200b9b9789794de4a8d78f4ae96d22.exe 4720 f6200b9b9789794de4a8d78f4ae96d22.exe 1600 iexplore.exe 1600 iexplore.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 3584 powershell.exe Token: SeDebugPrivilege 3928 powershell.exe Token: SeDebugPrivilege 3888 powershell.exe Token: SeIncreaseQuotaPrivilege 3928 powershell.exe Token: SeSecurityPrivilege 3928 powershell.exe Token: SeTakeOwnershipPrivilege 3928 powershell.exe Token: SeLoadDriverPrivilege 3928 powershell.exe Token: SeSystemProfilePrivilege 3928 powershell.exe Token: SeSystemtimePrivilege 3928 powershell.exe Token: SeProfSingleProcessPrivilege 3928 powershell.exe Token: SeIncBasePriorityPrivilege 3928 powershell.exe Token: SeCreatePagefilePrivilege 3928 powershell.exe Token: SeBackupPrivilege 3928 powershell.exe Token: SeRestorePrivilege 3928 powershell.exe Token: SeShutdownPrivilege 3928 powershell.exe Token: SeDebugPrivilege 3928 powershell.exe Token: SeSystemEnvironmentPrivilege 3928 powershell.exe Token: SeRemoteShutdownPrivilege 3928 powershell.exe Token: SeUndockPrivilege 3928 powershell.exe Token: SeManageVolumePrivilege 3928 powershell.exe Token: 33 3928 powershell.exe Token: 34 3928 powershell.exe Token: 35 3928 powershell.exe Token: 36 3928 powershell.exe Token: SeIncreaseQuotaPrivilege 3584 powershell.exe Token: SeSecurityPrivilege 3584 powershell.exe Token: SeTakeOwnershipPrivilege 3584 powershell.exe Token: SeLoadDriverPrivilege 3584 powershell.exe Token: SeSystemProfilePrivilege 3584 powershell.exe Token: SeSystemtimePrivilege 3584 powershell.exe Token: SeProfSingleProcessPrivilege 3584 powershell.exe Token: SeIncBasePriorityPrivilege 3584 powershell.exe Token: SeCreatePagefilePrivilege 3584 powershell.exe Token: SeBackupPrivilege 3584 powershell.exe Token: SeRestorePrivilege 3584 powershell.exe Token: SeShutdownPrivilege 3584 powershell.exe Token: SeDebugPrivilege 3584 powershell.exe Token: SeSystemEnvironmentPrivilege 3584 powershell.exe Token: SeRemoteShutdownPrivilege 3584 powershell.exe Token: SeUndockPrivilege 3584 powershell.exe Token: SeManageVolumePrivilege 3584 powershell.exe Token: 33 3584 powershell.exe Token: 34 3584 powershell.exe Token: 35 3584 powershell.exe Token: 36 3584 powershell.exe Token: SeIncreaseQuotaPrivilege 3888 powershell.exe Token: SeSecurityPrivilege 3888 powershell.exe Token: SeTakeOwnershipPrivilege 3888 powershell.exe Token: SeLoadDriverPrivilege 3888 powershell.exe Token: SeSystemProfilePrivilege 3888 powershell.exe Token: SeSystemtimePrivilege 3888 powershell.exe Token: SeProfSingleProcessPrivilege 3888 powershell.exe Token: SeIncBasePriorityPrivilege 3888 powershell.exe Token: SeCreatePagefilePrivilege 3888 powershell.exe Token: SeBackupPrivilege 3888 powershell.exe Token: SeRestorePrivilege 3888 powershell.exe Token: SeShutdownPrivilege 3888 powershell.exe Token: SeDebugPrivilege 3888 powershell.exe Token: SeSystemEnvironmentPrivilege 3888 powershell.exe Token: SeRemoteShutdownPrivilege 3888 powershell.exe Token: SeUndockPrivilege 3888 powershell.exe Token: SeManageVolumePrivilege 3888 powershell.exe Token: 33 3888 powershell.exe Token: 34 3888 powershell.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4720 f6200b9b9789794de4a8d78f4ae96d22.exe 4764 iexplore.exe - Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 3388 wrote to memory of 3928 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 69 PID 3388 wrote to memory of 3888 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 70 PID 3388 wrote to memory of 3928 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 69 PID 3388 wrote to memory of 3888 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 70 PID 3388 wrote to memory of 3928 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 69 PID 3388 wrote to memory of 3888 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 70 PID 3388 wrote to memory of 3584 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 73 PID 3388 wrote to memory of 3584 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 73 PID 3388 wrote to memory of 3584 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 73 PID 3388 wrote to memory of 3032 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 75 PID 3388 wrote to memory of 3032 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 75 PID 3388 wrote to memory of 3032 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 75 PID 3388 wrote to memory of 4716 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 77 PID 3388 wrote to memory of 4716 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 77 PID 3388 wrote to memory of 4716 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 77 PID 3388 wrote to memory of 4720 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 78 PID 3388 wrote to memory of 4720 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 78 PID 3388 wrote to memory of 4720 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 78 PID 3388 wrote to memory of 4720 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 78 PID 3388 wrote to memory of 4720 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 78 PID 3388 wrote to memory of 4720 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 78 PID 3388 wrote to memory of 4720 3388 f6200b9b9789794de4a8d78f4ae96d22.exe 78 PID 4720 wrote to memory of 4764 4720 f6200b9b9789794de4a8d78f4ae96d22.exe 79 PID 4720 wrote to memory of 4764 4720 f6200b9b9789794de4a8d78f4ae96d22.exe 79 PID 4720 wrote to memory of 4764 4720 f6200b9b9789794de4a8d78f4ae96d22.exe 79 PID 4720 wrote to memory of 4764 4720 f6200b9b9789794de4a8d78f4ae96d22.exe 79 PID 4720 wrote to memory of 4764 4720 f6200b9b9789794de4a8d78f4ae96d22.exe 79 PID 4720 wrote to memory of 4764 4720 f6200b9b9789794de4a8d78f4ae96d22.exe 79 PID 4720 wrote to memory of 4764 4720 f6200b9b9789794de4a8d78f4ae96d22.exe 79 PID 4720 wrote to memory of 4764 4720 f6200b9b9789794de4a8d78f4ae96d22.exe 79 PID 4764 wrote to memory of 1016 4764 iexplore.exe 80 PID 4764 wrote to memory of 1016 4764 iexplore.exe 80 PID 4764 wrote to memory of 1016 4764 iexplore.exe 80 PID 4764 wrote to memory of 1016 4764 iexplore.exe 80 PID 4764 wrote to memory of 4784 4764 iexplore.exe 81 PID 4764 wrote to memory of 4784 4764 iexplore.exe 81 PID 4764 wrote to memory of 4784 4764 iexplore.exe 81 PID 4764 wrote to memory of 4784 4764 iexplore.exe 81 PID 4764 wrote to memory of 4784 4764 iexplore.exe 81 PID 4764 wrote to memory of 4784 4764 iexplore.exe 81 PID 4764 wrote to memory of 4784 4764 iexplore.exe 81 PID 4764 wrote to memory of 4784 4764 iexplore.exe 81 PID 4764 wrote to memory of 4796 4764 iexplore.exe 82 PID 4764 wrote to memory of 4796 4764 iexplore.exe 82 PID 4764 wrote to memory of 4796 4764 iexplore.exe 82 PID 4764 wrote to memory of 4796 4764 iexplore.exe 82 PID 4764 wrote to memory of 4796 4764 iexplore.exe 82 PID 4764 wrote to memory of 4796 4764 iexplore.exe 82 PID 4764 wrote to memory of 4796 4764 iexplore.exe 82 PID 4764 wrote to memory of 4796 4764 iexplore.exe 82 PID 4764 wrote to memory of 4796 4764 iexplore.exe 82 PID 4764 wrote to memory of 4828 4764 iexplore.exe 85 PID 4764 wrote to memory of 4828 4764 iexplore.exe 85 PID 4764 wrote to memory of 4828 4764 iexplore.exe 85 PID 4764 wrote to memory of 4828 4764 iexplore.exe 85 PID 4764 wrote to memory of 4828 4764 iexplore.exe 85 PID 4764 wrote to memory of 4828 4764 iexplore.exe 85 PID 4764 wrote to memory of 4828 4764 iexplore.exe 85 PID 4764 wrote to memory of 4828 4764 iexplore.exe 85 PID 4764 wrote to memory of 4828 4764 iexplore.exe 85 PID 4764 wrote to memory of 4860 4764 iexplore.exe 86 PID 4764 wrote to memory of 4860 4764 iexplore.exe 86 PID 4764 wrote to memory of 4860 4764 iexplore.exe 86 PID 4764 wrote to memory of 4860 4764 iexplore.exe 86 - System policy modification 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" f6200b9b9789794de4a8d78f4ae96d22.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f6200b9b9789794de4a8d78f4ae96d22.exe"C:\Users\Admin\AppData\Local\Temp\f6200b9b9789794de4a8d78f4ae96d22.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3388 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection www.google.com2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3928
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection www.bing.com2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3888
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection www.facebook.com2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3584
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection www.twitter.com2⤵
- Suspicious behavior: EnumeratesProcesses
PID:3032
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C:\Users\Admin\AppData\Local\Temp\f6200b9b9789794de4a8d78f4ae96d22.exeC:\Users\Admin\AppData\Local\Temp\f6200b9b9789794de4a8d78f4ae96d22.exe2⤵PID:4716
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C:\Users\Admin\AppData\Local\Temp\f6200b9b9789794de4a8d78f4ae96d22.exeC:\Users\Admin\AppData\Local\Temp\f6200b9b9789794de4a8d78f4ae96d22.exe2⤵
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4720 -
C:\Program Files (x86)\Internet Explorer\iexplore.exeC:\Users\Admin\AppData\Local\Temp\f6200b9b9789794de4a8d78f4ae96d22.exe3⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4764 -
C:\Windows\SysWOW64\notepad.exenotepad.exe4⤵
- Deletes itself
PID:1016
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\ykgleybck0.txt"4⤵
- Suspicious behavior: EnumeratesProcesses
PID:4784
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\ykgleybck1.txt"4⤵PID:4796
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4796 -s 925⤵
- Program crash
PID:1304
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\ykgleybck1.txt"4⤵PID:4828
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\ykgleybck2.txt"4⤵PID:4860
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4860 -s 925⤵
- Program crash
PID:1436
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\ykgleybck2.txt"4⤵PID:4876
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4876 -s 925⤵
- Program crash
PID:4884
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\ykgleybck2.txt"4⤵
- Suspicious behavior: EnumeratesProcesses
PID:1600
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\ykgleybck3.txt"4⤵PID:1672
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\ykgleybck4.txt"4⤵PID:1824
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