Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
02/06/2026, 09:38
Static task
static1
Behavioral task
behavioral1
Sample
tmpgs2fssd_.exe
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral2
Sample
tmpgs2fssd_.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral3
Sample
tmpgs2fssd_.exe
Resource
win11-20260513-en
General
- Target tmpgs2fssd_.exe
- Size 4.2MB
- Sample260602-ll3lrabt5n
- SHA256 1e146ab127759a07a58c869ea63459fb611607750ea7c023ffe36a56079658c9
- MD5 42149f8ec356bdf12748114fe2a2295f
- SHA1 d2f8fbb889f8b8e28b98352dd3e17230a41f0893
- SHA512 331480733f6cd4dbac6274475671005b720d0454df2d24c19907f3d58c53ae2e0db44f5f3125fa4073a03669a3a7ebc229c1e8423144f97093904a2df50d8e34
- SSDEEP 98304:c6H24mpQm717nbjFmPd67NkwNcs1opl8cEKAHlzz3V+w4HSn:BHapQw17nbjFmPiNf1opXEKAZ8wuSn
- TLSH T134163302A2947FA0FA1A0F739F0DDBF856EE79910D153B9B1218691F01732F292736B5
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Glupteba payload 22 IoCs
resource yara_rule behavioral2/memory/3532-2-0x0000000003040000-0x000000000392B000-memory.dmp family_glupteba behavioral2/memory/3532-49-0x0000000003040000-0x000000000392B000-memory.dmp family_glupteba behavioral2/memory/3532-48-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/3708-119-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/3708-120-0x0000000002C10000-0x000000000300D000-memory.dmp family_glupteba behavioral2/memory/3728-167-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/1596-171-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/3728-280-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/3844-281-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/2672-284-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/820-285-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/3728-287-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/3728-293-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/3728-299-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/3728-305-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/3728-311-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/3728-317-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/3728-323-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/3728-329-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/3728-335-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/3728-341-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba behavioral2/memory/3728-347-0x0000000000400000-0x0000000000D1B000-memory.dmp family_glupteba - Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4716 netsh.exe - Executes dropped EXE 6 IoCs
pid Process 3728 csrss.exe 1596 csrss.exe 3844 csrss.exe 2672 csrss.exe 820 csrss.exe 2748 injector.exe - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" tmpgs2fssd_.exe Set value (str) \REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe - Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe - Drops file in System32 directory 9 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe - Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN tmpgs2fssd_.exe - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss tmpgs2fssd_.exe File created C:\Windows\rss\csrss.exe tmpgs2fssd_.exe -
pid Process 4272 powershell.exe 1616 powershell.exe 4996 powershell.exe 312 powershell.exe 2408 powershell.exe 2940 powershell.exe 2440 powershell.exe 452 powershell.exe 4716 powershell.exe 4984 powershell.exe 3412 powershell.exe - Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe - System Location Discovery: System Language Discovery 1 TTPs 18 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 powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language csrss.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language tmpgs2fssd_.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language tmpgs2fssd_.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language csrss.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language csrss.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language csrss.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language csrss.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe - Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1684 schtasks.exe 4376 schtasks.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4272 powershell.exe 4272 powershell.exe 3532 tmpgs2fssd_.exe 3532 tmpgs2fssd_.exe 1616 powershell.exe 1616 powershell.exe 3708 tmpgs2fssd_.exe 3708 tmpgs2fssd_.exe 3708 tmpgs2fssd_.exe 3708 tmpgs2fssd_.exe 3708 tmpgs2fssd_.exe 3708 tmpgs2fssd_.exe 3708 tmpgs2fssd_.exe 3708 tmpgs2fssd_.exe 3708 tmpgs2fssd_.exe 3708 tmpgs2fssd_.exe 452 powershell.exe 452 powershell.exe 4996 powershell.exe 4996 powershell.exe 312 powershell.exe 312 powershell.exe 2408 powershell.exe 2408 powershell.exe 2408 powershell.exe 1596 csrss.exe 1596 csrss.exe 2940 powershell.exe 2940 powershell.exe 2940 powershell.exe 2940 powershell.exe 2440 powershell.exe 2440 powershell.exe 2440 powershell.exe 4716 powershell.exe 4716 powershell.exe 4716 powershell.exe 4984 powershell.exe 4984 powershell.exe 4984 powershell.exe 2672 csrss.exe 2672 csrss.exe 2748 injector.exe 2748 injector.exe 3412 powershell.exe 3412 powershell.exe 3412 powershell.exe 2748 injector.exe 2748 injector.exe 2748 injector.exe 2748 injector.exe 3728 csrss.exe 3728 csrss.exe 2748 injector.exe 2748 injector.exe 2748 injector.exe 2748 injector.exe 2748 injector.exe 2748 injector.exe 3728 csrss.exe 3728 csrss.exe 2748 injector.exe 2748 injector.exe 2748 injector.exe - Suspicious use of AdjustPrivilegeToken 18 IoCs
description pid Process Token: SeDebugPrivilege 4272 powershell.exe Token: SeDebugPrivilege 3532 tmpgs2fssd_.exe Token: SeImpersonatePrivilege 3532 tmpgs2fssd_.exe Token: SeDebugPrivilege 1616 powershell.exe Token: SeDebugPrivilege 452 powershell.exe Token: SeDebugPrivilege 4996 powershell.exe Token: SeDebugPrivilege 312 powershell.exe Token: SeDebugPrivilege 2408 powershell.exe Token: SeDebugPrivilege 1596 csrss.exe Token: SeImpersonatePrivilege 1596 csrss.exe Token: SeDebugPrivilege 2940 powershell.exe Token: SeDebugPrivilege 2440 powershell.exe Token: SeDebugPrivilege 4716 powershell.exe Token: SeDebugPrivilege 4984 powershell.exe Token: SeSystemEnvironmentPrivilege 3728 csrss.exe Token: SeDebugPrivilege 2672 csrss.exe Token: SeImpersonatePrivilege 2672 csrss.exe Token: SeDebugPrivilege 3412 powershell.exe - Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 3532 wrote to memory of 4272 3532 tmpgs2fssd_.exe 93 PID 3708 wrote to memory of 1616 3708 tmpgs2fssd_.exe 98 PID 3708 wrote to memory of 4712 3708 tmpgs2fssd_.exe 100 PID 4712 wrote to memory of 4716 4712 cmd.exe 102 PID 3708 wrote to memory of 452 3708 tmpgs2fssd_.exe 103 PID 3708 wrote to memory of 4996 3708 tmpgs2fssd_.exe 105 PID 3708 wrote to memory of 3728 3708 tmpgs2fssd_.exe 107 PID 1596 wrote to memory of 312 1596 csrss.exe 112 PID 3728 wrote to memory of 2408 3728 csrss.exe 114 PID 3728 wrote to memory of 2940 3728 csrss.exe 122 PID 3844 wrote to memory of 2440 3844 csrss.exe 132 PID 3728 wrote to memory of 4716 3728 csrss.exe 134 PID 2672 wrote to memory of 4984 2672 csrss.exe 136 PID 3728 wrote to memory of 2748 3728 csrss.exe 139 PID 820 wrote to memory of 3412 820 csrss.exe 143 - 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\tmpgs2fssd_.exe"C:\Users\Admin\AppData\Local\Temp\tmpgs2fssd_.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3532 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4272
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C:\Users\Admin\AppData\Local\Temp\tmpgs2fssd_.exe"C:\Users\Admin\AppData\Local\Temp\tmpgs2fssd_.exe"2⤵
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3708 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1616
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C:\Windows\system32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"3⤵
- Suspicious use of WriteProcessMemory
PID:4712 -
C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes4⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
PID:4716
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:452
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4996
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3728 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2408
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Scheduled Task/Job: Scheduled Task
PID:1684
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4516
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2940
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4716
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeC:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:2748
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Scheduled Task/Job: Scheduled Task
PID:4376
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C:\Windows\rss\csrss.exe"C:\Windows\rss\csrss.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1596 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:312
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C:\Windows\rss\csrss.exe"C:\Windows\rss\csrss.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3844 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2440
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2672 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4984
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-
C:\Windows\rss\csrss.exe"C:\Windows\rss\csrss.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:820 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3412
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Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
- Size 2KB
- SHA256 f019af2e5e74cdf13c963910500f9436c66b6f2901f5056d72f82310f20113b9
- MD5 a6ea7bfcd3aac150c0caef765cb52281
- SHA1 037dc22c46a0eb0b9ad4c74088129e387cffe96b
- SHA512 c8d2d373b48a26cf6eec1f5cfc05819011a3fc49d863820ad07b6442dd6d5f64e27022a9e4c381eb58bf7f6b19f8e77d508734ff803073ec2fb32da9081b6f23
- TLSH T186518D303161A8D84D435F0205286ED5A3EF478AAFAC8F5CB529231DCE2A44BD7221F3
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 21KB
- SHA256 2c7e20db11abe315cbe07f3a7aa3f0465e560dd5f1f348f9399ed4c308eeb8a3
- MD5 6b2bb56c1bb50ed2303270143e1fa209
- SHA1 561b058e1a31766c1e11572e156fdf4f970e131d
- SHA512 7ca79c98d5fe7486818804e37a125aee2e65d46bf620b5871db8a3568c9ce15602ffcbeed765bc2bee3ddb9d199288c373b81db6d97c9af9fd061a891ca874af
- SSDEEP 384:Osf+hoJ9i+uirUAkxvNVhJWlowTJK6seYbneqx/xofLYbLU0WF5Xt9KyA/9JbAYs:bfA16VUlVhElowTJN+nFQY/XEXt9CzO3
- TLSH T1CFA2E75E618F16C3C4866378D11A041FE8F2DD8D431926D8BB1F8F7B8AAC6BF6178548
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 21KB
- SHA256 e1ed60f072ac458e028b49479a4b8f1d6f79ca3bceb4b247372186fa6fef2440
- MD5 ac6782e1380b55931607138d1d2c15cb
- SHA1 2d2446f42952d79109b9266dcca51f972c3cc92c
- SHA512 38aa946f6393f8d76d44fb08b960bc80c8874b3677edddeeebf969e937200cc5041afba30a0af085711318d263e8fb4cb6f28688b75babdc7aa0942462a7274d
- SSDEEP 384:0sf+honZ2x9BBbxuizJk+o9oQTVK6b8FNpfNzPB3UDLYbY0toUIKJekhKMWKCA/3:BfAO2XDejoQTVN8FNpf1Pu/YvuUBEOKe
- TLSH T1AAA2274E521B2AD3C15A23B8C026439FD5B28DCF83009BCD774B4A27168BA7560B86F8
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_klooa3cg.m5n.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
- Size 281KB
- SHA256 5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
- MD5 d98e33b66343e7c96158444127a117f6
- SHA1 bb716c5509a2bf345c6c1152f6e3e1452d39d50d
- SHA512 705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
- SSDEEP 3072:qbHszDaOJ8u2HHFIWr6e29kOnK7qFQ8wMii5I7kGvNjzMuszHshoY46bEydJ+dK9:SA3IlIA6e29vngqS8wMmuooh8z+8F
- TLSH T17B546C5AB2A918F8ED77823CC8525516F672B8160730D6EF03A447672F276E09D3FB21
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
- Size 2KB
- SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
- MD5 968cb9309758126772781b83adb8a28f
- SHA1 8da30e71accf186b2ba11da1797cf67f8f78b47c
- SHA512 4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
- TLSH T1A4417C303261A9D84D435B0215286ED5E3EF478AAFAC5F5CB569231DCE2A44BD7221F3
- MD5 SHA1 SHA512 TLSH
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 2cfd1ad359775a9a4d6067e23f3e6455db3a4764350cf7dbccc7219fa397671b
- MD5 685617afd49b948ea5c228a1cb328e4e
- SHA1 f3be78fd37a8aeaf35c212890a755222adcb2cf1
- SHA512 4748d05dd43b649231c31465daac381889287a25338596629fba3a647387f5008268ee3c967813a3424a9f054fa239d0f6556d2ebe138c098cd532186330a1e0
- SSDEEP 384:n6+BHRBQ451Z//7neAloSvd+ETfYFFNpfemxw7/ZiaMhJu1EN+nFbOuj3lup2Og:6EQk1/ySPvd+ETf8FNpfQ7vYQ1H4ublH
- TLSH T1E192299E621F2AD7C4A613F4C43743EBD9B09ECE930007CD678A693B06CAA7554691FC
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 8d12dec910dd37f5d2603a8d95d60a8f2cc8b1c380e962dc452c98fc7552c6dd
- MD5 c398d6fe6a84d2a66cc55ed4d3e2ae83
- SHA1 8eb5c39af01cdc56f02776b3beea7afb1d0bd8cb
- SHA512 2e66b255cda3ff450f3a66b2febf8253f0aa460015640f2d31380a81b68b26b64cc57f5d7937f1ac538bd23c528b46ca30646b40a500515c5dc6afb2aa0f7097
- SSDEEP 384:Msf+BSHBafe97tyzqM04to9o5wNYFFjffemy7/IOq01Jm1uAP+nFbOuj3l/cOg:pfNafe760lo5wN8Fjff47lQ1up4ublk
- TLSH T15F92285D221F1AD6E72223B4C4264BEFF8F09DCBC34406DE57851A3906EA7B684D91F8
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 b9e376b5db4044c7c4325c92f3f4ef583333cb67e040932a22a86335d556a8f3
- MD5 e38bef15b38f6cc852e556c55f95861d
- SHA1 46b0b038deddb30960e9bd15e9dc08fe5d936c4f
- SHA512 88cff36f2777e6ff40972f2c24581cdded772df7dabc3397e7cd7e686fa92b5da974ae0e8fe1fd70dc4bd43f254eb3ea54d825b4abb3025e404baeaa8ba912c3
- SSDEEP 384:Ksf+BS9m+Lv0MEBlqBilPp/RLTo4zu1NYFFjffemdw7/ZqPM1oEL13jxD+nFbOu+:3f/v0MEjqolJ9i1N8Fjffc7akF13I4u+
- TLSH T18392195D621F2AD7D0A513F8C42A47DFE5B09DCFC3000BDD66895E3B0ACA67684AC1E8
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 1e0819b44d4b187b8c9a2cee22523db6ae6691f7de683bcbdcf1167802606d55
- MD5 d7aa632fc54329ea5875902052b75b08
- SHA1 6231f651ec56983d472c2af2800654250dbcf3dd
- SHA512 400f3cb99a62a755ff2108b66650ac6964e9618441bfbe109e81060b1df526683ba3a25dc90ee38c9bfae28ec85fd4d8e3128c0a4b918e523eae0afd94688f70
- SSDEEP 384:C8sf+BHRBh75QsONho9o5ARNYFFNpfem1c7/IORuT1Ytoky1EY+nFbOuj3lu1Og:C5fEh7OSo5ARN8FNpfY7SUk1a4ublU
- TLSH T14692085D621F2A96F02613B0D42A4BDBFDB0ADCFC38006DE57411E37069BBB584E51E9
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 6565c061d8b77045c6652b48469965501fd688556ec928ccf8a368418d9b0292
- MD5 f87e644ed147eb8805ba2e1f09a56d95
- SHA1 22f71bef81295f84b6935c803e2d18467f77af0c
- SHA512 0392526789393f7be4f4e2d39d16ce2d61759072744eb64a3ba18ebe63fdbfcf965b057b8f16013506d570226b1e50184b1c7975db3d7599602171f295e6459b
- SSDEEP 384:fsf+BsRB+BRtgvSB6AhXk+o9dNYFFNpfemFk7/ZGPMVdC1Prr+nFbOuj3lu3pOg:UfN+tgKYAujdN8FNpfg7WE41u4ublw
- TLSH T10792079D620F3AD7C0A613F4C42647EFE9B09ECEC30047DD67855A3B06CAB7594A91E8
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 6afd81bc4ba7bd8e2206ff8a25af9e4df922bbb8925ecbd6c4e1da15d038958f
- MD5 5523e33004945d9c3b7632eb4d5ad6e1
- SHA1 b93a854b95eabdc5d7d7711a3d0161ba9e45d9b4
- SHA512 dc70566969c7a78287b0a6b72a240d01b7218cd4aa1d980df676ddeb88f7b75585db0fae06f0b98416348eb0e291887deccb2931f4cb7dd1e68628c898c20d3d
- SSDEEP 384:9sf+Bi9m+rR/F0J2sWVzk0o9oVVK6seYbnei8v/ZFwMHVOuEIjaL0LZbObTUSyR:ifHR/FQXnZoVVN+n4vxOuEI5FqMdR
- TLSH T1CF92095E201F16C3C48613B8D117054FE8F2EE8D531A17D9BB1E9F3B8AACA9E913C548
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\rss\csrss.exe
- Size 4.2MB
- SHA256 1e146ab127759a07a58c869ea63459fb611607750ea7c023ffe36a56079658c9
- MD5 42149f8ec356bdf12748114fe2a2295f
- SHA1 d2f8fbb889f8b8e28b98352dd3e17230a41f0893
- SHA512 331480733f6cd4dbac6274475671005b720d0454df2d24c19907f3d58c53ae2e0db44f5f3125fa4073a03669a3a7ebc229c1e8423144f97093904a2df50d8e34
- SSDEEP 98304:c6H24mpQm717nbjFmPd67NkwNcs1opl8cEKAHlzz3V+w4HSn:BHapQw17nbjFmPiNf1opXEKAZ8wuSn
- TLSH T134163302A2947FA0FA1A0F739F0DDBF856EE79910D153B9B1218691F01732F292736B5
- MD5 SHA1 SHA512 SSDEEP TLSH