Analysis
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max time kernel
148s -
max time network
48s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
29/11/2022, 16:27
Static task
static1
Behavioral task
behavioral1
Sample
8d43297cc8b03e591916b983607aff97755b162b395c05a0801c6944c823450f.exe
Resource
win7-20220812-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
8d43297cc8b03e591916b983607aff97755b162b395c05a0801c6944c823450f.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
9 signatures
150 seconds
General
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Target
8d43297cc8b03e591916b983607aff97755b162b395c05a0801c6944c823450f.exe
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Size
509KB
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MD5
0711f47aa102ddbb50227df5ba7ce34a
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SHA1
7d1212ea2c5d464675520486890374c513b66840
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SHA256
8d43297cc8b03e591916b983607aff97755b162b395c05a0801c6944c823450f
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SHA512
7d5bf520a4db23d09502c28ca2e256478f19f445db62d715e8fb5833167cfc7a193c9eee4ec919a493ad2e90734f421ab190df4fdb297ccc45fe924020ac46c8
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SSDEEP
12288:DsvG73RqznHTlJd3r4Q2Q37oni85maU46rrZwj:sKgRz3r4rni8Xka
Score
10/10
Malware Config
Signatures
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Modifies firewall policy service 2 TTPs 8 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List reg.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Roaming\explorer.exe = "C:\\Users\\Admin\\AppData\\Roaming\\explorer.exe:*:Enabled:Windows Messanger" reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile reg.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List reg.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe = "C:\\Windows\\Microsoft.NET\\Framework\\v2.0.50727\\vbc.exe:*:Enabled:Windows Messanger" reg.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile reg.exe -
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 vbc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\Microsoft Corporation = "C:\\Users\\Admin\\AppData\\Roaming\\explorer.exe" vbc.exe -
Uses the VBS compiler for execution 1 TTPs
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Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run vbc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Corporation = "C:\\Users\\Admin\\AppData\\Roaming\\explorer.exe" vbc.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run vbc.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft Corporation = "C:\\Users\\Admin\\AppData\\Roaming\\explorer.exe" vbc.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1224 set thread context of 1740 1224 8d43297cc8b03e591916b983607aff97755b162b395c05a0801c6944c823450f.exe 28 -
Modifies registry key 1 TTPs 4 IoCs
pid Process 524 reg.exe 868 reg.exe 1144 reg.exe 1332 reg.exe -
Suspicious use of AdjustPrivilegeToken 36 IoCs
description pid Process Token: 1 1740 vbc.exe Token: SeCreateTokenPrivilege 1740 vbc.exe Token: SeAssignPrimaryTokenPrivilege 1740 vbc.exe Token: SeLockMemoryPrivilege 1740 vbc.exe Token: SeIncreaseQuotaPrivilege 1740 vbc.exe Token: SeMachineAccountPrivilege 1740 vbc.exe Token: SeTcbPrivilege 1740 vbc.exe Token: SeSecurityPrivilege 1740 vbc.exe Token: SeTakeOwnershipPrivilege 1740 vbc.exe Token: SeLoadDriverPrivilege 1740 vbc.exe Token: SeSystemProfilePrivilege 1740 vbc.exe Token: SeSystemtimePrivilege 1740 vbc.exe Token: SeProfSingleProcessPrivilege 1740 vbc.exe Token: SeIncBasePriorityPrivilege 1740 vbc.exe Token: SeCreatePagefilePrivilege 1740 vbc.exe Token: SeCreatePermanentPrivilege 1740 vbc.exe Token: SeBackupPrivilege 1740 vbc.exe Token: SeRestorePrivilege 1740 vbc.exe Token: SeShutdownPrivilege 1740 vbc.exe Token: SeDebugPrivilege 1740 vbc.exe Token: SeAuditPrivilege 1740 vbc.exe Token: SeSystemEnvironmentPrivilege 1740 vbc.exe Token: SeChangeNotifyPrivilege 1740 vbc.exe Token: SeRemoteShutdownPrivilege 1740 vbc.exe Token: SeUndockPrivilege 1740 vbc.exe Token: SeSyncAgentPrivilege 1740 vbc.exe Token: SeEnableDelegationPrivilege 1740 vbc.exe Token: SeManageVolumePrivilege 1740 vbc.exe Token: SeImpersonatePrivilege 1740 vbc.exe Token: SeCreateGlobalPrivilege 1740 vbc.exe Token: 31 1740 vbc.exe Token: 32 1740 vbc.exe Token: 33 1740 vbc.exe Token: 34 1740 vbc.exe Token: 35 1740 vbc.exe Token: SeDebugPrivilege 1740 vbc.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1740 vbc.exe 1740 vbc.exe 1740 vbc.exe -
Suspicious use of WriteProcessMemory 40 IoCs
description pid Process procid_target PID 1224 wrote to memory of 1740 1224 8d43297cc8b03e591916b983607aff97755b162b395c05a0801c6944c823450f.exe 28 PID 1224 wrote to memory of 1740 1224 8d43297cc8b03e591916b983607aff97755b162b395c05a0801c6944c823450f.exe 28 PID 1224 wrote to memory of 1740 1224 8d43297cc8b03e591916b983607aff97755b162b395c05a0801c6944c823450f.exe 28 PID 1224 wrote to memory of 1740 1224 8d43297cc8b03e591916b983607aff97755b162b395c05a0801c6944c823450f.exe 28 PID 1224 wrote to memory of 1740 1224 8d43297cc8b03e591916b983607aff97755b162b395c05a0801c6944c823450f.exe 28 PID 1224 wrote to memory of 1740 1224 8d43297cc8b03e591916b983607aff97755b162b395c05a0801c6944c823450f.exe 28 PID 1224 wrote to memory of 1740 1224 8d43297cc8b03e591916b983607aff97755b162b395c05a0801c6944c823450f.exe 28 PID 1224 wrote to memory of 1740 1224 8d43297cc8b03e591916b983607aff97755b162b395c05a0801c6944c823450f.exe 28 PID 1740 wrote to memory of 1764 1740 vbc.exe 29 PID 1740 wrote to memory of 1764 1740 vbc.exe 29 PID 1740 wrote to memory of 1764 1740 vbc.exe 29 PID 1740 wrote to memory of 1764 1740 vbc.exe 29 PID 1740 wrote to memory of 1664 1740 vbc.exe 31 PID 1740 wrote to memory of 1664 1740 vbc.exe 31 PID 1740 wrote to memory of 1664 1740 vbc.exe 31 PID 1740 wrote to memory of 1664 1740 vbc.exe 31 PID 1740 wrote to memory of 1260 1740 vbc.exe 32 PID 1740 wrote to memory of 1260 1740 vbc.exe 32 PID 1740 wrote to memory of 1260 1740 vbc.exe 32 PID 1740 wrote to memory of 1260 1740 vbc.exe 32 PID 1740 wrote to memory of 992 1740 vbc.exe 35 PID 1740 wrote to memory of 992 1740 vbc.exe 35 PID 1740 wrote to memory of 992 1740 vbc.exe 35 PID 1740 wrote to memory of 992 1740 vbc.exe 35 PID 1764 wrote to memory of 524 1764 cmd.exe 36 PID 1764 wrote to memory of 524 1764 cmd.exe 36 PID 1764 wrote to memory of 524 1764 cmd.exe 36 PID 1764 wrote to memory of 524 1764 cmd.exe 36 PID 1260 wrote to memory of 1144 1260 cmd.exe 39 PID 1260 wrote to memory of 1144 1260 cmd.exe 39 PID 1260 wrote to memory of 1144 1260 cmd.exe 39 PID 1260 wrote to memory of 1144 1260 cmd.exe 39 PID 1664 wrote to memory of 868 1664 cmd.exe 38 PID 1664 wrote to memory of 868 1664 cmd.exe 38 PID 1664 wrote to memory of 868 1664 cmd.exe 38 PID 1664 wrote to memory of 868 1664 cmd.exe 38 PID 992 wrote to memory of 1332 992 cmd.exe 40 PID 992 wrote to memory of 1332 992 cmd.exe 40 PID 992 wrote to memory of 1332 992 cmd.exe 40 PID 992 wrote to memory of 1332 992 cmd.exe 40
Processes
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C:\Users\Admin\AppData\Local\Temp\8d43297cc8b03e591916b983607aff97755b162b395c05a0801c6944c823450f.exe"C:\Users\Admin\AppData\Local\Temp\8d43297cc8b03e591916b983607aff97755b162b395c05a0801c6944c823450f.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1224 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe2⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1740 -
C:\Windows\SysWOW64\cmd.execmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f3⤵
- Suspicious use of WriteProcessMemory
PID:1764 -
C:\Windows\SysWOW64\reg.exeREG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f4⤵
- Modifies firewall policy service
- Modifies registry key
PID:524
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C:\Windows\SysWOW64\cmd.execmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /t REG_SZ /d "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe:*:Enabled:Windows Messanger" /f3⤵
- Suspicious use of WriteProcessMemory
PID:1664 -
C:\Windows\SysWOW64\reg.exeREG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /t REG_SZ /d "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe:*:Enabled:Windows Messanger" /f4⤵
- Modifies firewall policy service
- Modifies registry key
PID:868
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C:\Windows\SysWOW64\cmd.execmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f3⤵
- Suspicious use of WriteProcessMemory
PID:1260 -
C:\Windows\SysWOW64\reg.exeREG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f4⤵
- Modifies firewall policy service
- Modifies registry key
PID:1144
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C:\Windows\SysWOW64\cmd.execmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\explorer.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\explorer.exe:*:Enabled:Windows Messanger" /f3⤵
- Suspicious use of WriteProcessMemory
PID:992 -
C:\Windows\SysWOW64\reg.exeREG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\explorer.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\explorer.exe:*:Enabled:Windows Messanger" /f4⤵
- Modifies firewall policy service
- Modifies registry key
PID:1332
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