Analysis
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max time kernel
150s -
max time network
153s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
20-04-2024 20:44
Static task
static1
Behavioral task
behavioral1
Sample
b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe
Resource
win10v2004-20240412-en
General
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Target
b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe
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Size
4.2MB
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MD5
8ec00d33cf600a6e0775180b2e0b6c0a
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SHA1
ef12fe7f7484028c86592713ca67f0afe6ee2a94
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SHA256
b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d
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SHA512
e160c75a21bb0794f881884e8543113659e7d2c23afb36e5c91b09209b0a1bfefae80491ef15eea588667a16611309ea5cdeb6a65dcd22e087031a38bf9b6ba7
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SSDEEP
98304:bVFRqPMdPA984H0WMAw6acMgLNchhd+W2lPIIo31xn1vrLR/3LzT:hFYkS+E0uawLNQ+/9Bo7/D
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/4108-2-0x0000000004140000-0x0000000004A2B000-memory.dmp family_glupteba behavioral2/memory/4108-3-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/2268-54-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/4108-68-0x0000000004140000-0x0000000004A2B000-memory.dmp family_glupteba behavioral2/memory/4108-80-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/2268-148-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/4196-243-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/4196-253-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/4196-256-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/4196-259-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/4196-262-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/4196-265-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/4196-268-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/4196-270-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/4196-273-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/4196-277-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/4196-280-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/4196-283-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba behavioral2/memory/4196-286-0x0000000000400000-0x0000000001DFF000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 3976 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 4196 csrss.exe 4844 injector.exe 1376 windefender.exe 3116 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/1376-250-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3116-255-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3116-261-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\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.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription 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.
Processes:
b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe -
Drops file in Windows directory 4 IoCs
Processes:
b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.execsrss.exedescription ioc process File opened for modification C:\Windows\rss b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe File created C:\Windows\rss\csrss.exe b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.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.
Processes:
sc.exepid process 4788 sc.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 3628 schtasks.exe 3632 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exewindefender.exeb9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-334 = "Jordan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1501 = "Turkey Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-121 = "SA Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-841 = "Argentina Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2411 = "Marquesas Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight 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,-251 = "Dateline Daylight Time" b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.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,-621 = "Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-364 = "Middle East Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exeb9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exepowershell.exeb9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 3340 powershell.exe 3340 powershell.exe 4108 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe 4108 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe 2500 powershell.exe 2500 powershell.exe 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe 1768 powershell.exe 1768 powershell.exe 2088 powershell.exe 2088 powershell.exe 2152 powershell.exe 2152 powershell.exe 2064 powershell.exe 2064 powershell.exe 1412 powershell.exe 1412 powershell.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4196 csrss.exe 4196 csrss.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4196 csrss.exe 4196 csrss.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4196 csrss.exe 4196 csrss.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe 4844 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exeb9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 3340 powershell.exe Token: SeDebugPrivilege 4108 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe Token: SeImpersonatePrivilege 4108 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe Token: SeDebugPrivilege 2500 powershell.exe Token: SeDebugPrivilege 1768 powershell.exe Token: SeDebugPrivilege 2088 powershell.exe Token: SeDebugPrivilege 2152 powershell.exe Token: SeDebugPrivilege 2064 powershell.exe Token: SeDebugPrivilege 1412 powershell.exe Token: SeSystemEnvironmentPrivilege 4196 csrss.exe Token: SeSecurityPrivilege 4788 sc.exe Token: SeSecurityPrivilege 4788 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exeb9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 4108 wrote to memory of 3340 4108 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe powershell.exe PID 4108 wrote to memory of 3340 4108 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe powershell.exe PID 4108 wrote to memory of 3340 4108 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe powershell.exe PID 2268 wrote to memory of 2500 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe powershell.exe PID 2268 wrote to memory of 2500 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe powershell.exe PID 2268 wrote to memory of 2500 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe powershell.exe PID 2268 wrote to memory of 1920 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe cmd.exe PID 2268 wrote to memory of 1920 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe cmd.exe PID 1920 wrote to memory of 3976 1920 cmd.exe netsh.exe PID 1920 wrote to memory of 3976 1920 cmd.exe netsh.exe PID 2268 wrote to memory of 1768 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe powershell.exe PID 2268 wrote to memory of 1768 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe powershell.exe PID 2268 wrote to memory of 1768 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe powershell.exe PID 2268 wrote to memory of 2088 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe powershell.exe PID 2268 wrote to memory of 2088 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe powershell.exe PID 2268 wrote to memory of 2088 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe powershell.exe PID 2268 wrote to memory of 4196 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe csrss.exe PID 2268 wrote to memory of 4196 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe csrss.exe PID 2268 wrote to memory of 4196 2268 b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe csrss.exe PID 4196 wrote to memory of 2152 4196 csrss.exe powershell.exe PID 4196 wrote to memory of 2152 4196 csrss.exe powershell.exe PID 4196 wrote to memory of 2152 4196 csrss.exe powershell.exe PID 4196 wrote to memory of 2064 4196 csrss.exe powershell.exe PID 4196 wrote to memory of 2064 4196 csrss.exe powershell.exe PID 4196 wrote to memory of 2064 4196 csrss.exe powershell.exe PID 4196 wrote to memory of 1412 4196 csrss.exe powershell.exe PID 4196 wrote to memory of 1412 4196 csrss.exe powershell.exe PID 4196 wrote to memory of 1412 4196 csrss.exe powershell.exe PID 4196 wrote to memory of 4844 4196 csrss.exe injector.exe PID 4196 wrote to memory of 4844 4196 csrss.exe injector.exe PID 1376 wrote to memory of 2584 1376 windefender.exe cmd.exe PID 1376 wrote to memory of 2584 1376 windefender.exe cmd.exe PID 1376 wrote to memory of 2584 1376 windefender.exe cmd.exe PID 2584 wrote to memory of 4788 2584 cmd.exe sc.exe PID 2584 wrote to memory of 4788 2584 cmd.exe sc.exe PID 2584 wrote to memory of 4788 2584 cmd.exe sc.exe -
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\b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe"C:\Users\Admin\AppData\Local\Temp\b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4108 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3340
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C:\Users\Admin\AppData\Local\Temp\b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.exe"C:\Users\Admin\AppData\Local\Temp\b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d.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:2268 -
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:2500
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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:1920 -
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:3976
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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:1768
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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:2088
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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:4196 -
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:2152
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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:3628
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4652
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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:2064
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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:1412
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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:4844
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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:3632
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1376 -
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:2584 -
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:4788
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3116
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
MD5494ad570bc742beeaa8cfe2e012655a1
SHA16966d4844b3832d54590f7148a345c923fd5ab5b
SHA2566b3616d08081c7d3d50dd36a0a65a8faa29ecdf877f53e5995e8d80b873a0a85
SHA5129160ea1869dde73345ce5ff8ba6d22bbe1c9468a3206ae38739aca93ebbbbdd7d1e5e2f500254e79409cdc45bee1356c01971508f93450f49c88c09d26de3082
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD541e7f84182ef6ecd3add20584e72b0c6
SHA18a1ff7de97e25d08d66655bdfb6ff0a4af993b64
SHA256ed2e2a558b9ad2d60c1b2c1b33d4270cabc4e613886d34b12f82f10c1ccec64b
SHA51278467faaae92cffb1a1ece63dfe72912082ca433fc3549c9d37e8af1776efe616ee7c4265605c06504e3bc5dd304eb0a598ef0e645a6c47d415841568eb2edda
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD529aee049d1473b9064594c09f00eb270
SHA109ebf4ca1b0f9a2ecea3b19d215fad8497789a38
SHA2565a99980279f3fbd60a3ad9cf6c2094d40e28b84e344ea7b445eb884e388e1dcb
SHA5127c82190c4fa202271cd72c34de0f8ffef35d6cc54edb415b7ff9318d0cb7599ab203d0282b017e753c5c3d6c292c27b10c585716ac1567c39acd2922a75b6d6b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52adf55b4b2feb7f3d8d3c0c06d863113
SHA10b1b7ba015644562d78ec8e4694105a0311291cf
SHA256fcd1bd045e4f1b1923218985fca22d3d6b05f05ac78a885e7759a34d13ec3b0b
SHA512325ad3ef3f766daf77dc3a0b17bcbcf3211255d0ac78d272d6ce677b7568c3a5b8f57e415ad72c671804997c5aed12a37c2441293e85f0a20c30eb03db6670cc
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD529883106fa7b8684ebaa9142b736a65f
SHA1aad7fe54ee0f34da2a83322eb8f6783227af194d
SHA256b928097fa11a2654360599aaf9db7f606a075dd5cde5aa7c7c87f4e2275440ec
SHA512b54d3b7cab0f6134fcb48a41e8e459db281f7c535dde2afdd3aa17f3e8f9ac759d3ff76668a5c23217af08225c36e4eb62070aaad6508d017438d14a4326a519
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Filesize
4.2MB
MD58ec00d33cf600a6e0775180b2e0b6c0a
SHA1ef12fe7f7484028c86592713ca67f0afe6ee2a94
SHA256b9df2710a2b71af9139373827354f14665fea10652871e6dacf8954e18322a7d
SHA512e160c75a21bb0794f881884e8543113659e7d2c23afb36e5c91b09209b0a1bfefae80491ef15eea588667a16611309ea5cdeb6a65dcd22e087031a38bf9b6ba7
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec