Analysis
- max time kernel
151s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
05/08/2026, 01:56
Static task
static1
Behavioral task
behavioral1
Sample
inst_smt008.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
inst_smt008.exe
Resource
win11ltsc2024-20260709-en
General
- Target inst_smt008.exe
- Size 55.2MB
- Sample260805-ccnxkahn81
- SHA256 684b9f86168d3a693a330ed939fba8b349f89d18a85fc4c74eff583a309fd8c4
- MD5 e7027631ddf7dad2b334017f310793d3
- SHA1 fbb3762c0376754c990673332a2fdef9dd84adbd
- SHA512 7fb22431063f3258b7cbbb2cd57b74d231b0bdf76872740442c494262df629d4190f2559ed7cdcdfcfe75d954b874bbbba6a7162bdf9237d2e5e3afa336f80d2
- SSDEEP 196608:InnmbV2qWwRNTc+u1aZfO8pP+QDhb6Z/LzEnSQ5Ps6W:iSRe9QD2
- TLSH T1DCC78406F702899AD4799338488B4F91B372ECF14AB6972323B8733D2EFA35C5E91545
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Windows security bypass 2 TTPs 6 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\Documents = "0" reg.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users = "0" reg.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Public\Jbt0Bp = "0" reg.exe - Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 2060 powershell.exe - Executes dropped EXE 2 IoCs
pid Process 5560 ByY6q9.exe 3320 ByY6q9.exe - Loads dropped DLL 2 IoCs
pid Process 5560 ByY6q9.exe 3320 ByY6q9.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Tencent SecurityHealth = "\"C:\\Users\\Public\\Jbt0Bp\\ByY6q9.exe\"" ByY6q9.exe - Indicator Removal: Clear Persistence 1 TTPs 5 IoCs
Clear artifacts associated with previously established persistence like scheduletasks on a host.
pid Process 6044 cmd.exe 5688 cmd.exe 1460 cmd.exe 2376 cmd.exe 3936 cmd.exe - Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\System32\CodeIntegrity\SiPolicy.p7b ByY6q9.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 3 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 472 cmd.exe 2740 cmd.exe 2300 cmd.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 5 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2084 schtasks.exe 2664 schtasks.exe 2020 schtasks.exe 2896 schtasks.exe 5912 schtasks.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5092 inst_smt008.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe 5560 ByY6q9.exe - Suspicious behavior: LoadsDriver 6 IoCs
pid Process 820 Process not Found 820 Process not Found 820 Process not Found 820 Process not Found 820 Process not Found 820 Process not Found - Suspicious use of AdjustPrivilegeToken 22 IoCs
description pid Process Token: SeDebugPrivilege 2060 powershell.exe Token: SeIncreaseQuotaPrivilege 2060 powershell.exe Token: SeSecurityPrivilege 2060 powershell.exe Token: SeTakeOwnershipPrivilege 2060 powershell.exe Token: SeLoadDriverPrivilege 2060 powershell.exe Token: SeSystemProfilePrivilege 2060 powershell.exe Token: SeSystemtimePrivilege 2060 powershell.exe Token: SeProfSingleProcessPrivilege 2060 powershell.exe Token: SeIncBasePriorityPrivilege 2060 powershell.exe Token: SeCreatePagefilePrivilege 2060 powershell.exe Token: SeBackupPrivilege 2060 powershell.exe Token: SeRestorePrivilege 2060 powershell.exe Token: SeShutdownPrivilege 2060 powershell.exe Token: SeDebugPrivilege 2060 powershell.exe Token: SeSystemEnvironmentPrivilege 2060 powershell.exe Token: SeRemoteShutdownPrivilege 2060 powershell.exe Token: SeUndockPrivilege 2060 powershell.exe Token: SeManageVolumePrivilege 2060 powershell.exe Token: 33 2060 powershell.exe Token: 34 2060 powershell.exe Token: 35 2060 powershell.exe Token: 36 2060 powershell.exe - Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 5560 wrote to memory of 2060 5560 ByY6q9.exe 93 PID 5560 wrote to memory of 6044 5560 ByY6q9.exe 95 PID 6044 wrote to memory of 5912 6044 cmd.exe 97 PID 6044 wrote to memory of 3968 6044 cmd.exe 98 PID 5560 wrote to memory of 5688 5560 ByY6q9.exe 99 PID 6044 wrote to memory of 4488 6044 cmd.exe 103 PID 5560 wrote to memory of 1460 5560 ByY6q9.exe 104 PID 5688 wrote to memory of 2084 5688 cmd.exe 107 PID 1460 wrote to memory of 2664 1460 cmd.exe 108 PID 5560 wrote to memory of 2376 5560 ByY6q9.exe 109 PID 5688 wrote to memory of 5144 5688 cmd.exe 111 PID 1460 wrote to memory of 680 1460 cmd.exe 113 PID 2376 wrote to memory of 2020 2376 cmd.exe 114 PID 5688 wrote to memory of 4364 5688 cmd.exe 115 PID 1460 wrote to memory of 2812 1460 cmd.exe 116 PID 2376 wrote to memory of 4508 2376 cmd.exe 117 PID 5560 wrote to memory of 3936 5560 ByY6q9.exe 118 PID 2376 wrote to memory of 1912 2376 cmd.exe 120 PID 3936 wrote to memory of 2896 3936 cmd.exe 121 PID 3936 wrote to memory of 3412 3936 cmd.exe 124 PID 3936 wrote to memory of 4972 3936 cmd.exe 127 PID 472 wrote to memory of 3832 472 cmd.exe 128 PID 2300 wrote to memory of 580 2300 cmd.exe 129 PID 2740 wrote to memory of 5420 2740 cmd.exe 130 - 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\inst_smt008.exe"C:\Users\Admin\AppData\Local\Temp\inst_smt008.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
PID:5092
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C:\Users\Public\Jbt0Bp\ByY6q9.exe"C:\Users\Public\Jbt0Bp\ByY6q9.exe"1⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5560 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath 'C:\ProgramData','C:\Users','C:\Program Files (x86)','C:\' -Force2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:2060
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\Public\Jbt0Bp\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F2⤵
- Indicator Removal: Clear Persistence
- Suspicious use of WriteProcessMemory
PID:6044 -
C:\Windows\system32\schtasks.exeSCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\Public\Jbt0Bp\" /t REG_DWORD /d 0 /f"3⤵
- Scheduled Task/Job: Scheduled Task
PID:5912
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C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:3968
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C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:4488
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\ProgramData\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F2⤵
- Indicator Removal: Clear Persistence
- Suspicious use of WriteProcessMemory
PID:5688 -
C:\Windows\system32\schtasks.exeSCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\ProgramData\" /t REG_DWORD /d 0 /f"3⤵
- Scheduled Task/Job: Scheduled Task
PID:2084
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C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:5144
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C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:4364
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F2⤵
- Indicator Removal: Clear Persistence
- Suspicious use of WriteProcessMemory
PID:1460 -
C:\Windows\system32\schtasks.exeSCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\" /t REG_DWORD /d 0 /f"3⤵
- Scheduled Task/Job: Scheduled Task
PID:2664
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C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:680
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C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:2812
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Program Files (x86)\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F2⤵
- Indicator Removal: Clear Persistence
- Suspicious use of WriteProcessMemory
PID:2376 -
C:\Windows\system32\schtasks.exeSCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Program Files (x86)\" /t REG_DWORD /d 0 /f"3⤵
- Scheduled Task/Job: Scheduled Task
PID:2020
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C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:4508
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C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:1912
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"%USERPROFILE%\Documents\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F2⤵
- Indicator Removal: Clear Persistence
- Suspicious use of WriteProcessMemory
PID:3936 -
C:\Windows\system32\schtasks.exeSCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\Admin\Documents\" /t REG_DWORD /d 0 /f"3⤵
- Scheduled Task/Job: Scheduled Task
PID:2896
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C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:3412
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C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:4972
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C:\Users\Public\Jbt0Bp\ByY6q9.exe"C:\Users\Public\Jbt0Bp\ByY6q9.exe"1⤵
- Executes dropped EXE
- Loads dropped DLL
PID:3320
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C:\Windows\system32\cmd.exe"cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\Jbt0Bp" /t REG_DWORD /d 0 /f1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:2740 -
C:\Windows\System32\reg.exereg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\Jbt0Bp" /t REG_DWORD /d 0 /f2⤵
- Windows security bypass
PID:5420
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C:\Windows\system32\cmd.execmd.exe1⤵PID:572
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C:\Windows\system32\cmd.exe"cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users" /t REG_DWORD /d 0 /f1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:2300 -
C:\Windows\System32\reg.exereg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users" /t REG_DWORD /d 0 /f2⤵
- Windows security bypass
PID:580
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C:\Windows\system32\cmd.exe"cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Admin\Documents" /t REG_DWORD /d 0 /f1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:472 -
C:\Windows\System32\reg.exereg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Admin\Documents" /t REG_DWORD /d 0 /f2⤵
- Windows security bypass
PID:3832
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Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2PowerShell
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
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Downloads
- Path C:\Users\Public\Jbt0Bp\ByY6q9.exe
- Size 135KB
- SHA256 676a2a7b94ca2f8ec76352ee656e4d075bb342bd7ad6efbc7c19c060001eace7
- MD5 9ec587911e501b73b7cf09f05d0ae17d
- SHA1 5b62403cc9a668c6e5c70ace177fd54fcc4c5936
- SHA512 d05468a472373815c46ccb46ec743408365d24982d10d8a23ee0036c28cf3dacd05d74304ef2d4b7118f91ff3f631f676b2e86ddee92a02cf988b0d3c6247847
- SSDEEP 3072:MmhXb5pgtiaRENEErO9Uj4OqhhUvB4BNgQaJ:MmjgtiayGErsUKh3To
- TLSH T1D0D38C2776A474F9E1778635C8511A1AE772B8760770CB9F03A442A62F237D19E3EF20
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Public\Jbt0Bp\UxEnhance64.dll
- Size 3.1MB
- SHA256 c8e9f14398b847bb457511f9e53b41fac6002594520ee68f1c38969024770dd6
- MD5 c29adceb35dbcfa8ec4cf63ea9c583f3
- SHA1 ac8c824419a5e57cca5ec21463ee338ab3e258c9
- SHA512 37c6d5e108f6dd9cec362f36a66350e7d1d135b71885dde1210b7f392c2a858e6483391a91d117645020b60f52f7250033db4597828949b4454219e2a9f814e0
- SSDEEP 49152:P9KpI8cBa0kj6BK0x3TiMQclkGo2PXk6rkwuuWG/+WizBedfb77N3SnKrKB+i:P9m29xx3Tiqt06ox6+z2rNNrKoi
- TLSH T195E523E5B6D739F6D023CBF4DA62A1AD70393F505F635C5F3B8929014E62228973A390
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Public\Jbt0Bp\adoresd.dat
- Size 4.7MB
- SHA256 b0fe2db581c626536e40824ad57903f17364ad6750e95ed97835eb73ee5d3381
- MD5 21291ef01e8d4556d7a81993e27cbe96
- SHA1 aa4dc17c68c2cee1b2fe6e2eb7dc4d281c00e2d4
- SHA512 ba74ea74ad5fe69076df04897df7d36fad03a6859efe4b3e4492a43f4add8f127ee195accd5d01cf811b8d542b6b5846e6ca930949c423c140b2f89dabd32b08
- SSDEEP 98304:Rmu1SwODpRGIRdXEMZYe6rFLoTTpMk6ZGvQv0Ss2i+XZXea1v5WZd8uCp:Eu1SwOflfZPF6Ma0bsoa5+qd
- TLSH T1CF3633368AE6F5C7E35B2A0AF36888DD12B0B7AD6E9D75C24AF070145DB30CE9015BC4
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Public\Jbt0Bp\msadox.tb
- Size 8KB
- SHA256 a6b34255421de6fcd33142f7d2a67d8311c49fd1a82f82f4971166b06ebb6a78
- MD5 426d071077a015af2dd1e38a27136273
- SHA1 ad1fc8221d0b4360e308af38f0fc6cbee3102263
- SHA512 112273e634fc245911f0fb5acd6888431a504424a791c3e070beae8f095cb4cefc7653044fb6bb2388f7ef0d3b2938c9be33337373419841dd846ae410688c68
- SSDEEP 192:HqbZajnZ45X1q3JXglD+3vR8cwNhIMCGe2y0PQp:HsZqZOXQ3uqvR2Kfzp
- TLSH T114029E05D7A20CC7D2016C71CD9EB2F5AB13A1DADA3926719C67D4C167072DD2CE620D
- MD5 SHA1 SHA512 SSDEEP TLSH