Analysis
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max time kernel
149s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
29-10-2024 15:26
Static task
static1
Behavioral task
behavioral1
Sample
DCRatBuild.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
DCRatBuild.exe
Resource
win10v2004-20241007-en
General
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Target
DCRatBuild.exe
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Size
1.8MB
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MD5
013bc21b187fbf033bdeec699b2263b5
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SHA1
78a44777f96bdd338e037fc87c548fe9b6e7f241
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SHA256
191d579dcc73daaca18b2442b8411f05d50ad19ea1ba834a0e2c67414edfdaf5
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SHA512
332b58b80ed3b88bbaaf59c4b3ab8735af56e6377ed36d8da625fd8c139d5607a7f5de603d85ba155dd78fdaca46e3a456693afd32b5cb1d88567e765a35abf0
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SSDEEP
24576:2TbBv5rUyXVuTutB3BpIRgMS/JiVQZph3Ute6XjQ+O34nNRB2PfC0xOhAjKEge1o:IBJuTu3ERX2Ysh30Ep34NKTxOWjKECd
Malware Config
Signatures
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DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Dcrat family
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Modifies WinLogon for persistence 2 TTPs 6 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Driverruntimeperfdll\\csrss.exe\"" surrogatesavesBrokerhost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Driverruntimeperfdll\\csrss.exe\", \"C:\\Driverruntimeperfdll\\csrss.exe\"" surrogatesavesBrokerhost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Driverruntimeperfdll\\csrss.exe\", \"C:\\Driverruntimeperfdll\\csrss.exe\", \"C:\\Program Files (x86)\\Windows Portable Devices\\winlogon.exe\"" surrogatesavesBrokerhost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Driverruntimeperfdll\\csrss.exe\", \"C:\\Driverruntimeperfdll\\csrss.exe\", \"C:\\Program Files (x86)\\Windows Portable Devices\\winlogon.exe\", \"C:\\Recovery\\WindowsRE\\csrss.exe\"" surrogatesavesBrokerhost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Driverruntimeperfdll\\csrss.exe\", \"C:\\Driverruntimeperfdll\\csrss.exe\", \"C:\\Program Files (x86)\\Windows Portable Devices\\winlogon.exe\", \"C:\\Recovery\\WindowsRE\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\wininit.exe\"" surrogatesavesBrokerhost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Driverruntimeperfdll\\csrss.exe\", \"C:\\Driverruntimeperfdll\\csrss.exe\", \"C:\\Program Files (x86)\\Windows Portable Devices\\winlogon.exe\", \"C:\\Recovery\\WindowsRE\\csrss.exe\", \"C:\\Recovery\\WindowsRE\\wininit.exe\", \"C:\\Driverruntimeperfdll\\surrogatesavesBrokerhost.exe\"" surrogatesavesBrokerhost.exe -
Process spawned unexpected child process 18 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2436 1704 schtasks.exe 96 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4844 1704 schtasks.exe 96 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1836 1704 schtasks.exe 96 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1496 1704 schtasks.exe 96 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 868 1704 schtasks.exe 96 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3476 1704 schtasks.exe 96 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4220 1704 schtasks.exe 96 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 5040 1704 schtasks.exe 96 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4816 1704 schtasks.exe 96 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4784 1704 schtasks.exe 96 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4020 1704 schtasks.exe 96 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1092 1704 schtasks.exe 96 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1860 1704 schtasks.exe 96 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4648 1704 schtasks.exe 96 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4696 1704 schtasks.exe 96 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2612 1704 schtasks.exe 96 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4296 1704 schtasks.exe 96 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4040 1704 schtasks.exe 96 -
Command and Scripting Interpreter: PowerShell 1 TTPs 18 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 716 powershell.exe 3064 powershell.exe 3016 powershell.exe 5100 powershell.exe 1620 powershell.exe 4440 powershell.exe 3564 powershell.exe 3740 powershell.exe 64 powershell.exe 976 powershell.exe 2708 powershell.exe 3816 powershell.exe 3352 powershell.exe 1596 powershell.exe 2404 powershell.exe 3504 powershell.exe 1568 powershell.exe 4436 powershell.exe -
Disables Task Manager via registry modification
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Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation WScript.exe Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation surrogatesavesBrokerhost.exe Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation DCRatBuild.exe -
Executes dropped EXE 2 IoCs
pid Process 2488 surrogatesavesBrokerhost.exe 960 surrogatesavesBrokerhost.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 10 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winlogon = "\"C:\\Program Files (x86)\\Windows Portable Devices\\winlogon.exe\"" surrogatesavesBrokerhost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Recovery\\WindowsRE\\csrss.exe\"" surrogatesavesBrokerhost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wininit = "\"C:\\Recovery\\WindowsRE\\wininit.exe\"" surrogatesavesBrokerhost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Driverruntimeperfdll\\csrss.exe\"" surrogatesavesBrokerhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winlogon = "\"C:\\Program Files (x86)\\Windows Portable Devices\\winlogon.exe\"" surrogatesavesBrokerhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Recovery\\WindowsRE\\csrss.exe\"" surrogatesavesBrokerhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wininit = "\"C:\\Recovery\\WindowsRE\\wininit.exe\"" surrogatesavesBrokerhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\surrogatesavesBrokerhost = "\"C:\\Driverruntimeperfdll\\surrogatesavesBrokerhost.exe\"" surrogatesavesBrokerhost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\surrogatesavesBrokerhost = "\"C:\\Driverruntimeperfdll\\surrogatesavesBrokerhost.exe\"" surrogatesavesBrokerhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Driverruntimeperfdll\\csrss.exe\"" surrogatesavesBrokerhost.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created \??\c:\Windows\System32\ip2t47.exe csc.exe File created \??\c:\Windows\System32\CSC576C537C966044B4B34E7D57EB45B2B.TMP csc.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\Windows Portable Devices\cc11b995f2a76d surrogatesavesBrokerhost.exe File created C:\Program Files (x86)\Windows Portable Devices\winlogon.exe surrogatesavesBrokerhost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language DCRatBuild.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WScript.exe -
Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000_Classes\Local Settings DCRatBuild.exe Key created \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000_Classes\Local Settings surrogatesavesBrokerhost.exe -
Modifies registry key 1 TTPs 1 IoCs
pid Process 5112 reg.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 18 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3476 schtasks.exe 4784 schtasks.exe 1860 schtasks.exe 2436 schtasks.exe 4844 schtasks.exe 1496 schtasks.exe 868 schtasks.exe 4220 schtasks.exe 5040 schtasks.exe 4696 schtasks.exe 4296 schtasks.exe 4040 schtasks.exe 4816 schtasks.exe 1092 schtasks.exe 1836 schtasks.exe 4020 schtasks.exe 4648 schtasks.exe 2612 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe 2488 surrogatesavesBrokerhost.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 960 surrogatesavesBrokerhost.exe -
Suspicious use of AdjustPrivilegeToken 20 IoCs
description pid Process Token: SeDebugPrivilege 2488 surrogatesavesBrokerhost.exe Token: SeDebugPrivilege 1568 powershell.exe Token: SeDebugPrivilege 3816 powershell.exe Token: SeDebugPrivilege 976 powershell.exe Token: SeDebugPrivilege 1620 powershell.exe Token: SeDebugPrivilege 716 powershell.exe Token: SeDebugPrivilege 3504 powershell.exe Token: SeDebugPrivilege 2404 powershell.exe Token: SeDebugPrivilege 2708 powershell.exe Token: SeDebugPrivilege 4436 powershell.exe Token: SeDebugPrivilege 3740 powershell.exe Token: SeDebugPrivilege 3352 powershell.exe Token: SeDebugPrivilege 5100 powershell.exe Token: SeDebugPrivilege 3016 powershell.exe Token: SeDebugPrivilege 3064 powershell.exe Token: SeDebugPrivilege 3564 powershell.exe Token: SeDebugPrivilege 4440 powershell.exe Token: SeDebugPrivilege 64 powershell.exe Token: SeDebugPrivilege 1596 powershell.exe Token: SeDebugPrivilege 960 surrogatesavesBrokerhost.exe -
Suspicious use of WriteProcessMemory 59 IoCs
description pid Process procid_target PID 3064 wrote to memory of 3716 3064 DCRatBuild.exe 84 PID 3064 wrote to memory of 3716 3064 DCRatBuild.exe 84 PID 3064 wrote to memory of 3716 3064 DCRatBuild.exe 84 PID 3716 wrote to memory of 3972 3716 WScript.exe 89 PID 3716 wrote to memory of 3972 3716 WScript.exe 89 PID 3716 wrote to memory of 3972 3716 WScript.exe 89 PID 3972 wrote to memory of 5112 3972 cmd.exe 91 PID 3972 wrote to memory of 5112 3972 cmd.exe 91 PID 3972 wrote to memory of 5112 3972 cmd.exe 91 PID 3972 wrote to memory of 2488 3972 cmd.exe 92 PID 3972 wrote to memory of 2488 3972 cmd.exe 92 PID 2488 wrote to memory of 4828 2488 surrogatesavesBrokerhost.exe 100 PID 2488 wrote to memory of 4828 2488 surrogatesavesBrokerhost.exe 100 PID 4828 wrote to memory of 1920 4828 csc.exe 102 PID 4828 wrote to memory of 1920 4828 csc.exe 102 PID 2488 wrote to memory of 976 2488 surrogatesavesBrokerhost.exe 118 PID 2488 wrote to memory of 976 2488 surrogatesavesBrokerhost.exe 118 PID 2488 wrote to memory of 4440 2488 surrogatesavesBrokerhost.exe 119 PID 2488 wrote to memory of 4440 2488 surrogatesavesBrokerhost.exe 119 PID 2488 wrote to memory of 64 2488 surrogatesavesBrokerhost.exe 120 PID 2488 wrote to memory of 64 2488 surrogatesavesBrokerhost.exe 120 PID 2488 wrote to memory of 2708 2488 surrogatesavesBrokerhost.exe 121 PID 2488 wrote to memory of 2708 2488 surrogatesavesBrokerhost.exe 121 PID 2488 wrote to memory of 1620 2488 surrogatesavesBrokerhost.exe 122 PID 2488 wrote to memory of 1620 2488 surrogatesavesBrokerhost.exe 122 PID 2488 wrote to memory of 4436 2488 surrogatesavesBrokerhost.exe 123 PID 2488 wrote to memory of 4436 2488 surrogatesavesBrokerhost.exe 123 PID 2488 wrote to memory of 3816 2488 surrogatesavesBrokerhost.exe 125 PID 2488 wrote to memory of 3816 2488 surrogatesavesBrokerhost.exe 125 PID 2488 wrote to memory of 1596 2488 surrogatesavesBrokerhost.exe 127 PID 2488 wrote to memory of 1596 2488 surrogatesavesBrokerhost.exe 127 PID 2488 wrote to memory of 5100 2488 surrogatesavesBrokerhost.exe 128 PID 2488 wrote to memory of 5100 2488 surrogatesavesBrokerhost.exe 128 PID 2488 wrote to memory of 3740 2488 surrogatesavesBrokerhost.exe 129 PID 2488 wrote to memory of 3740 2488 surrogatesavesBrokerhost.exe 129 PID 2488 wrote to memory of 3064 2488 surrogatesavesBrokerhost.exe 130 PID 2488 wrote to memory of 3064 2488 surrogatesavesBrokerhost.exe 130 PID 2488 wrote to memory of 1568 2488 surrogatesavesBrokerhost.exe 131 PID 2488 wrote to memory of 1568 2488 surrogatesavesBrokerhost.exe 131 PID 2488 wrote to memory of 3504 2488 surrogatesavesBrokerhost.exe 132 PID 2488 wrote to memory of 3504 2488 surrogatesavesBrokerhost.exe 132 PID 2488 wrote to memory of 3352 2488 surrogatesavesBrokerhost.exe 133 PID 2488 wrote to memory of 3352 2488 surrogatesavesBrokerhost.exe 133 PID 2488 wrote to memory of 716 2488 surrogatesavesBrokerhost.exe 135 PID 2488 wrote to memory of 716 2488 surrogatesavesBrokerhost.exe 135 PID 2488 wrote to memory of 2404 2488 surrogatesavesBrokerhost.exe 136 PID 2488 wrote to memory of 2404 2488 surrogatesavesBrokerhost.exe 136 PID 2488 wrote to memory of 3016 2488 surrogatesavesBrokerhost.exe 144 PID 2488 wrote to memory of 3016 2488 surrogatesavesBrokerhost.exe 144 PID 2488 wrote to memory of 3564 2488 surrogatesavesBrokerhost.exe 145 PID 2488 wrote to memory of 3564 2488 surrogatesavesBrokerhost.exe 145 PID 2488 wrote to memory of 2272 2488 surrogatesavesBrokerhost.exe 153 PID 2488 wrote to memory of 2272 2488 surrogatesavesBrokerhost.exe 153 PID 2272 wrote to memory of 5408 2272 cmd.exe 162 PID 2272 wrote to memory of 5408 2272 cmd.exe 162 PID 2272 wrote to memory of 5968 2272 cmd.exe 158 PID 2272 wrote to memory of 5968 2272 cmd.exe 158 PID 2272 wrote to memory of 960 2272 cmd.exe 164 PID 2272 wrote to memory of 960 2272 cmd.exe 164 -
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\DCRatBuild.exe"C:\Users\Admin\AppData\Local\Temp\DCRatBuild.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3064 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Driverruntimeperfdll\m71jv3paESEH9S1QA3ZsNaBNLB28NhVlZEjuWU.vbe"2⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3716 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Driverruntimeperfdll\uPDozmlRKjrXNChMTgfGYis2.bat" "3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3972 -
C:\Windows\SysWOW64\reg.exereg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f4⤵
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:5112
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C:\Driverruntimeperfdll\surrogatesavesBrokerhost.exe"C:\Driverruntimeperfdll/surrogatesavesBrokerhost.exe"4⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Program Files directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2488 -
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\2tm41gmy\2tm41gmy.cmdline"5⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4828 -
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESAF7A.tmp" "c:\Windows\System32\CSC576C537C966044B4B34E7D57EB45B2B.TMP"6⤵PID:1920
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/'5⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:976
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/$Recycle.Bin/'5⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:4440
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/Documents and Settings/'5⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:64
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/Driverruntimeperfdll/'5⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:2708
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/PerfLogs/'5⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:1620
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files/'5⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:4436
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files (x86)/'5⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:3816
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/ProgramData/'5⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:1596
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/Recovery/'5⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:5100
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/System Volume Information/'5⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:3740
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/Users/'5⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:3064
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/Windows/'5⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:1568
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\Driverruntimeperfdll\csrss.exe'5⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:3504
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\Driverruntimeperfdll\csrss.exe'5⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:3352
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Windows Portable Devices\winlogon.exe'5⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:716
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\Recovery\WindowsRE\csrss.exe'5⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:2404
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\Recovery\WindowsRE\wininit.exe'5⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:3016
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\Driverruntimeperfdll\surrogatesavesBrokerhost.exe'5⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:3564
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\bi5f3Tlxap.bat"5⤵
- Suspicious use of WriteProcessMemory
PID:2272 -
C:\Windows\system32\chcp.comchcp 650016⤵PID:5408
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C:\Windows\system32\w32tm.exew32tm /stripchart /computer:localhost /period:5 /dataonly /samples:26⤵PID:5968
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C:\Driverruntimeperfdll\surrogatesavesBrokerhost.exe"C:\Driverruntimeperfdll\surrogatesavesBrokerhost.exe"6⤵
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:960
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\Driverruntimeperfdll\csrss.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2436
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Driverruntimeperfdll\csrss.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4844
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrssc" /sc MINUTE /mo 12 /tr "'C:\Driverruntimeperfdll\csrss.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1836
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrssc" /sc MINUTE /mo 8 /tr "'C:\Driverruntimeperfdll\csrss.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1496
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Driverruntimeperfdll\csrss.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:868
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Driverruntimeperfdll\csrss.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3476
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Windows Portable Devices\winlogon.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4220
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Portable Devices\winlogon.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5040
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Windows Portable Devices\winlogon.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4816
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\csrss.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4784
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\csrss.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4020
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\csrss.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1092
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "wininitw" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\wininit.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1860
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\wininit.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4648
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "wininitw" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\wininit.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4696
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "surrogatesavesBrokerhosts" /sc MINUTE /mo 6 /tr "'C:\Driverruntimeperfdll\surrogatesavesBrokerhost.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2612
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "surrogatesavesBrokerhost" /sc ONLOGON /tr "'C:\Driverruntimeperfdll\surrogatesavesBrokerhost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4296
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "surrogatesavesBrokerhosts" /sc MINUTE /mo 8 /tr "'C:\Driverruntimeperfdll\surrogatesavesBrokerhost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4040
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C:\Windows\System32\mousocoreworker.exeC:\Windows\System32\mousocoreworker.exe -Embedding1⤵PID:5408
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
222B
MD5b6b3920b58d924e219828c67336f9202
SHA1cb1edfba46ed630f75d694921ee738880dffd095
SHA256f16ba871ed12b8a447a30c861a27a1324a11346541aabdc38469adcce6d3adaa
SHA51204e583eb72e34c3f5ebf7b24cc4fe97d52e4a1e2b8deeef20210bcf82161e7cfeebf467767e246c0b4af948a71ca1768ab61e416e915f72eba55e7cca23cab3b
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Filesize
1.9MB
MD5967181542acac77f5b13f46542e84812
SHA109fbf9cfb636459cc4d54308b5b1c91d32a29f22
SHA256277b0b668d401e4fcabdc18fbdde331b0db64f9b62bfa4b76b83b6179f3a57d2
SHA512323023582fcc14c30aca827db68bb91204a5e6dc894bb1228370a3c925bb28559778f09a0b3d4581d462921630cede3ac1cd4c864357ee5b4928698e5bbdf082
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Filesize
222B
MD5132d5c788d06205db0e25a0b3c6bf78e
SHA1d729095f4934409561af630b79c5ec3272d452b5
SHA256ae76410765fd16a45a999b3a5a60a89a61c0edaa453144127664142fb360699c
SHA512899f1ed8d047b5d9aad48239e78d7025d9aeb305514fa3c23e1d692a3a24f9358ebe98e9bdce8054df25c728d355260230b4d8858a4987030793dfd8f9f0597b
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Filesize
2KB
MD5d85ba6ff808d9e5444a4b369f5bc2730
SHA131aa9d96590fff6981b315e0b391b575e4c0804a
SHA25684739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA5128c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
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Filesize
1KB
MD5af6acd95d59de87c04642509c30e81c1
SHA1f9549ae93fdb0a5861a79a08f60aa81c4b32377b
SHA2567521ee2d065a78efcab55a194fbd78492f84b70595f139263875f4ea92b194d6
SHA51293ab99bcf588fde553de3240e0d2b0cbd4e4bc5ef5e99d53f45a267d7ff30103a80b5a7aa1c52d6eff1e070af0ec82d2c0b8aafb7099742aa16810edc1815c3a
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Filesize
944B
MD56d3e9c29fe44e90aae6ed30ccf799ca8
SHA1c7974ef72264bbdf13a2793ccf1aed11bc565dce
SHA2562360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d
SHA51260c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a
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Filesize
944B
MD5cadef9abd087803c630df65264a6c81c
SHA1babbf3636c347c8727c35f3eef2ee643dbcc4bd2
SHA256cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438
SHA5127278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085
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Filesize
944B
MD559d97011e091004eaffb9816aa0b9abd
SHA11602a56b01dd4b7c577ca27d3117e4bcc1aa657b
SHA25618f381e0db020a763b8c515c346ef58679ab9c403267eacfef5359e272f7e71d
SHA512d9ca49c1a17580981e2c1a50d73c0eecaa7a62f8514741512172e395af2a3d80aeb0f71c58bc7f52c18246d57ba67af09b6bff4776877d6cc6f0245c30e092d6
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Filesize
944B
MD5a8e8360d573a4ff072dcc6f09d992c88
SHA13446774433ceaf0b400073914facab11b98b6807
SHA256bf5e284e8f95122bf75ead61c7e2b40f55c96742b05330b5b1cb7915991df13b
SHA5124ee5167643d82082f57c42616007ef9be57f43f9731921bdf7bca611a914724ad94072d3c8f5b130fa54129e5328ccdebf37ba74339c37deb53e79df5cdf0dbe
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Filesize
944B
MD5ecceac16628651c18879d836acfcb062
SHA1420502b3e5220a01586c59504e94aa1ee11982c9
SHA25658238de09a8817ed9f894ed8e5bf06a897fd08e0b0bd77e508d37b2598edd2a9
SHA512be3c7cb529cafb00f58790a6f8b35c4ff6db9f7f43a507d2218fd80cebc88413e46f71b1bc35b8afcc36b68f9409c946470d1e74a4fe225400eeb6f3f898f5b3
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Filesize
944B
MD56c47b3f4e68eebd47e9332eebfd2dd4e
SHA167f0b143336d7db7b281ed3de5e877fa87261834
SHA2568c48b1f2338e5b24094821f41121d2221f1cb3200338f46df49f64d1c4bc3e0c
SHA5120acf302a9fc971ef9df65ed42c47ea17828e54dff685f4434f360556fd27cdc26a75069f00dcdc14ba174893c6fd7a2cfd8c6c07be3ce35dafee0a006914eaca
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Filesize
944B
MD5aaaac7c68d2b7997ed502c26fd9f65c2
SHA17c5a3731300d672bf53c43e2f9e951c745f7fbdf
SHA2568724dc2c3c8e8f17aeefae44a23741b1ea3b43c490fbc52fd61575ffe1cd82bb
SHA512c526febd9430413b48bed976edd9a795793ad1f06c8ff4f6b768b4ad63f4d2f06b9da72d4fcfa7cb9530a64e2dc3554f5ad97fd0ab60129701d175f2724ef1ac
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Filesize
944B
MD5e8ce785f8ccc6d202d56fefc59764945
SHA1ca032c62ddc5e0f26d84eff9895eb87f14e15960
SHA256d85c19fc6b9d25e2168a2cc50ff38bd226fbf4f02aa7ac038a5f319522d2ffa4
SHA51266460aec4afee582556270f8ee6048d130a090f1c12a2632ed71a99a4073e9931e9e1cc286e32debffb95a90bd955f0f0d6ec891b1c5cd2f0aae41eb6d25832f
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Filesize
944B
MD55f0ddc7f3691c81ee14d17b419ba220d
SHA1f0ef5fde8bab9d17c0b47137e014c91be888ee53
SHA256a31805264b8b13ce4145f272cb2830728c186c46e314b48514d636866217add5
SHA5122ce7c2a0833f581297c13dd88ccfcd36bf129d2b5d7718c52b1d67c97cbd8fc93abc085a040229a0fd712e880c690de7f6b996b0b47c46a091fabb7931be58d3
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Filesize
1KB
MD5244ba16df5fda642bf9295d5357d2c79
SHA168715722a81611938950806a432778b726892a8e
SHA256d96c19794dbad2a605186411e86389fb923241c047c25f48ba3bf3e91d919945
SHA512a08e4c3ea4256dbd7065806da7d383886cbba4b4d9a1203d39ae4a34f15cbea9022145be24bf1ba0a9257696c5af7796904b24240cc15bc1615df2ad6be22f51
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
228B
MD590032d34c9363ced79238935ba31940d
SHA124f5d026caaf69fe3c29b276b35c3809bc0628f1
SHA256bbaadf2bcb40257008c66196e82d6a50b5c6cf8d8f58636b35565c755e5a80cf
SHA512a5c297f9ef7a18d9ec472a9a05b33254f7bbc94f95b0c32708e6b081e0c03328b20d88fa78e5eccbd1fd80e7b073431e0a14670e806a40d6e372e618edd140af
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Filesize
365B
MD5f4bb89a9101ffafa95d05d61d38bf441
SHA14605239f9ce63c8af54d01c4ff696bc494d119e4
SHA256ae935a45c84dc9b520f8dd6ade1c067e34546de3ae31b81b8ee3ffe19d5f08fc
SHA512fd44cc2b5be24b91b4a7cf47cc886cca77aca34943bd9e39e9d1a2ebc94dcc28882d735df3bb48209ceb17fa6ab803ef431b1a09ab8ae176c8b62e4e21c636e8
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Filesize
235B
MD58d614b1b8dd94c0774f7554571e3e0dc
SHA1d74183b4d0c94d9188d35b60f86a059003684754
SHA256c2253f88f7cd405c8fb7cd0c51c2497c782911167d8be5b186f8649e318fdd0e
SHA512c88cceabb07c487b0d510d8da5c15a6ca0aa076ffe85470441a1cd345331d23432e7c5f80587eea00f51648e954e9ab7dcb7d23a6cd23cd9116e7cf147143967
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Filesize
1KB
MD5034b083b6729ade0b138a24cbdd66c6d
SHA1299c5a9dd91498cfc4226a5fe6d52ea633c2d148
SHA2568e3aa7a68c0bfea6cae11fe40e79aa1483bc2e43c4c3fd11fcebca1f7bcea0d2
SHA51243f68ec3211f2d1eb3a095713b3988a5b45a6fb03136876431edd3b25b628f904079557cbb60d0107c0444551db274c8e6817d63a543e8a7e390206af64d1cc3