Analysis
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max time kernel
150s -
max time network
128s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
17/04/2024, 15:43
Static task
static1
Behavioral task
behavioral1
Sample
21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe
Resource
win10v2004-20240412-en
General
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Target
21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe
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Size
4.2MB
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MD5
3c6a7591bdbbdad4334c1bf9f52e2dc1
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SHA1
b2fa497f97da4435d0f76f8827206f10c57277e3
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SHA256
21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af
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SHA512
f0937c7398106a89e94cf3e9c38d75700f8772f3174f64c335b1a14d462b27bd454756eba26549e42f6ca8c6b103e7ee7425cc8716b17b281bd4e32deede107e
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SSDEEP
98304:mz7Cg0ld9bGpeFIidtQ9zICqBAsCsR7hN5aqRYTU7/:M7NcfZtQ9LJEd3aOYT+/
Malware Config
Signatures
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Glupteba payload 21 IoCs
resource yara_rule behavioral2/memory/5116-2-0x0000000005370000-0x0000000005C5B000-memory.dmp family_glupteba behavioral2/memory/5116-3-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5116-51-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5116-52-0x0000000005370000-0x0000000005C5B000-memory.dmp family_glupteba behavioral2/memory/5916-54-0x0000000004E30000-0x0000000005234000-memory.dmp family_glupteba behavioral2/memory/5916-55-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5916-135-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5916-144-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/1136-242-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/1136-251-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/1136-253-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/1136-255-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/1136-257-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/1136-259-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/1136-261-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/1136-263-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/1136-265-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/1136-267-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/1136-269-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/1136-271-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/1136-273-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1760 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1136 csrss.exe 5672 injector.exe 3156 windefender.exe 3680 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa43-245.dat upx behavioral2/memory/3156-249-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3680-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3680-256-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Set value (str) \REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\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.
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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 7 IoCs
description ioc Process 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 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 -
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 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe File created C:\Windows\rss\csrss.exe 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 2076 sc.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1364 schtasks.exe 3624 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-51 = "Greenland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-362 = "GTB Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-231 = "Hawaiian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-512 = "Central Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-281 = "Central Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2371 = "Easter Island Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-591 = "Malay Peninsula Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs 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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2804 powershell.exe 2804 powershell.exe 5116 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 5116 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 1288 powershell.exe 1288 powershell.exe 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 4900 powershell.exe 4900 powershell.exe 1448 powershell.exe 1448 powershell.exe 2940 powershell.exe 2940 powershell.exe 5532 powershell.exe 5532 powershell.exe 3576 powershell.exe 3576 powershell.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 1136 csrss.exe 1136 csrss.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 1136 csrss.exe 1136 csrss.exe 5672 injector.exe 5672 injector.exe 1136 csrss.exe 1136 csrss.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe 5672 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2804 powershell.exe Token: SeDebugPrivilege 5116 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Token: SeImpersonatePrivilege 5116 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe Token: SeDebugPrivilege 1288 powershell.exe Token: SeDebugPrivilege 4900 powershell.exe Token: SeDebugPrivilege 1448 powershell.exe Token: SeDebugPrivilege 2940 powershell.exe Token: SeDebugPrivilege 5532 powershell.exe Token: SeDebugPrivilege 3576 powershell.exe Token: SeSystemEnvironmentPrivilege 1136 csrss.exe Token: SeSecurityPrivilege 2076 sc.exe Token: SeSecurityPrivilege 2076 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 5116 wrote to memory of 2804 5116 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 81 PID 5116 wrote to memory of 2804 5116 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 81 PID 5116 wrote to memory of 2804 5116 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 81 PID 5916 wrote to memory of 1288 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 86 PID 5916 wrote to memory of 1288 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 86 PID 5916 wrote to memory of 1288 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 86 PID 5916 wrote to memory of 3496 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 88 PID 5916 wrote to memory of 3496 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 88 PID 3496 wrote to memory of 1760 3496 cmd.exe 90 PID 3496 wrote to memory of 1760 3496 cmd.exe 90 PID 5916 wrote to memory of 4900 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 91 PID 5916 wrote to memory of 4900 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 91 PID 5916 wrote to memory of 4900 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 91 PID 5916 wrote to memory of 1448 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 93 PID 5916 wrote to memory of 1448 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 93 PID 5916 wrote to memory of 1448 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 93 PID 5916 wrote to memory of 1136 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 95 PID 5916 wrote to memory of 1136 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 95 PID 5916 wrote to memory of 1136 5916 21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe 95 PID 1136 wrote to memory of 2940 1136 csrss.exe 96 PID 1136 wrote to memory of 2940 1136 csrss.exe 96 PID 1136 wrote to memory of 2940 1136 csrss.exe 96 PID 1136 wrote to memory of 5532 1136 csrss.exe 102 PID 1136 wrote to memory of 5532 1136 csrss.exe 102 PID 1136 wrote to memory of 5532 1136 csrss.exe 102 PID 1136 wrote to memory of 3576 1136 csrss.exe 104 PID 1136 wrote to memory of 3576 1136 csrss.exe 104 PID 1136 wrote to memory of 3576 1136 csrss.exe 104 PID 1136 wrote to memory of 5672 1136 csrss.exe 106 PID 1136 wrote to memory of 5672 1136 csrss.exe 106 PID 3156 wrote to memory of 4648 3156 windefender.exe 113 PID 3156 wrote to memory of 4648 3156 windefender.exe 113 PID 3156 wrote to memory of 4648 3156 windefender.exe 113 PID 4648 wrote to memory of 2076 4648 cmd.exe 114 PID 4648 wrote to memory of 2076 4648 cmd.exe 114 PID 4648 wrote to memory of 2076 4648 cmd.exe 114 -
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\21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe"C:\Users\Admin\AppData\Local\Temp\21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5116 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2804
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C:\Users\Admin\AppData\Local\Temp\21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe"C:\Users\Admin\AppData\Local\Temp\21286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af.exe"2⤵
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5916 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1288
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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:3496 -
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
PID:1760
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4900
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1448
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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.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1136 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2940
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:1364
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3304
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5532
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3576
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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:5672
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3624
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3156 -
C:\Windows\SysWOW64\cmd.execmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)5⤵
- Suspicious use of WriteProcessMemory
PID:4648 -
C:\Windows\SysWOW64\sc.exesc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)6⤵
- Launches sc.exe
- Suspicious use of AdjustPrivilegeToken
PID:2076
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3680
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5aad7424eb1afc83763d0397464b76b80
SHA1f7b5184697bd7c997450013fee1aa89daf22bb72
SHA256f5764829625b705cf7fb0b4dd33309c1aea438d1d07f9f1060ae08e088e764d7
SHA512980d24649801edafcfafd8092b65b0344760603efa485acb38ae2ccae27d3708b150ad9c311f353f138e997fffd42157df3cf00942ff82953b4831a39abb30c3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a4173bfd21d6f574a3e3b343ae66cf1b
SHA11d422d6de9359abaf22aa6f877cca3319f580326
SHA256b660cfe8fa88e57111c77ae729c939f2610d4d6603beb1355b7f8ce3f44b21f5
SHA5121efa956adcadaa3d080034aa8689ad97d548ab4b16419d745bb7f19168eebebba10cd61985851b97a10bac00dfcb9c203e033bf178c03cbb92f2caaf33958d2a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD501dd7faab49d01a77a1b3cb331198ce7
SHA1480ca336501740224d5e61f9a4bd23202d81c65b
SHA256b6e35c3ec381725a7b40d23bc143cb0bcf786cc1cc2a0309638ba3a5d36d65b7
SHA512151cc507d3051429b325218f32ccdd999ec145425fa21e5cc4daac821d3e37c6e3c4bc4ce50fa87d97173ca92e0ba93b34db23d3645c5acfafd580d07ec2ea25
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59b9f886f3be10e47589ac8d0903cfb18
SHA149434a0c2c63fc744ef7954f39b1172d067a6d0a
SHA25616234049228ff7790066a32e86c2af9ce3ef18f8e0fa6b29eb74a575effadd59
SHA512e210b1104afb169cb851caad34ee9854ef7d8b93bcd122a603b01bf7a9588fa247c0bf9694cca486fcbe6c61704edf03497c7293c69666adef1a0f9c35360bdf
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD572fb4c629da042d8fa4bb9988d85c2f1
SHA1f25e1e6eb9211fea4951e79307cd899c209da30d
SHA256566930bda4b875ce607509b1daaa5ac6f8a498d952af16c278e3b4e243e0d9a7
SHA512974de2ea3fa7ee328a2a52e1fa2b1c18a475bb8025947cabb302239e8b2466532786e885c871d420ecca7fd4c4de5377e66dff8ea3219dcf81bd866c3a441437
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Filesize
4.2MB
MD53c6a7591bdbbdad4334c1bf9f52e2dc1
SHA1b2fa497f97da4435d0f76f8827206f10c57277e3
SHA25621286e20fabd8bef82200fdaf357e0f65292fed22b9547be11d2aaf11054c2af
SHA512f0937c7398106a89e94cf3e9c38d75700f8772f3174f64c335b1a14d462b27bd454756eba26549e42f6ca8c6b103e7ee7425cc8716b17b281bd4e32deede107e
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec