Analysis
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max time kernel
58s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
15/04/2024, 23:15
Static task
static1
Behavioral task
behavioral1
Sample
b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe
Resource
win10v2004-20240226-en
General
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Target
b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe
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Size
4.2MB
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MD5
28d96049024c763784f8093ed28cbc30
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SHA1
c1ed32511ff2baaa7404e9f687d9fbc9e21429c6
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SHA256
b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb
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SHA512
e5ac6c8ffa9a3b200311181ac555e5ff879256dd1cf36d0fbc237abdce1d65d924ce20815d15bf606a0f7126796a6ba53d28710dd2fcf479fd2fba7635b18c98
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SSDEEP
98304:ISg0AOosUAIvRolfFiY/u3Ped+A31OMuKJoHPAzb/cqRkOL7:FgEDUAIvoF1YU0vAH/cq7v
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral1/memory/3420-2-0x0000000005130000-0x0000000005A1B000-memory.dmp family_glupteba behavioral1/memory/3420-3-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/3420-5-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/3420-49-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/3420-57-0x0000000005130000-0x0000000005A1B000-memory.dmp family_glupteba behavioral1/memory/3420-59-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/4676-61-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/4676-108-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/4676-157-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/4488-206-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/4488-260-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/4488-270-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/4488-275-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/4488-279-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/4488-281-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/4488-287-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/4488-291-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/4488-295-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba behavioral1/memory/4488-299-0x0000000000400000-0x000000000311B000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2180 netsh.exe -
Executes dropped EXE 1 IoCs
pid Process 4488 csrss.exe -
resource yara_rule behavioral1/files/0x00030000000219e9-264.dat upx behavioral1/memory/3228-269-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/756-273-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/756-282-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.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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Drops file in System32 directory 5 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 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 -
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 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe File opened for modification C:\Windows\rss b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 760 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 2528 schtasks.exe 1528 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA 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\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\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 Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs 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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\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\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed 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\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe -
Suspicious behavior: EnumeratesProcesses 30 IoCs
pid Process 3236 powershell.exe 3236 powershell.exe 3236 powershell.exe 3420 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 3420 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 2440 powershell.exe 2440 powershell.exe 2440 powershell.exe 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 3888 powershell.exe 3888 powershell.exe 3888 powershell.exe 3448 powershell.exe 3448 powershell.exe 3448 powershell.exe 4064 powershell.exe 4064 powershell.exe 4064 powershell.exe 1004 powershell.exe 1004 powershell.exe 1004 powershell.exe -
Suspicious use of AdjustPrivilegeToken 8 IoCs
description pid Process Token: SeDebugPrivilege 3236 powershell.exe Token: SeDebugPrivilege 3420 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Token: SeImpersonatePrivilege 3420 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe Token: SeDebugPrivilege 2440 powershell.exe Token: SeDebugPrivilege 3888 powershell.exe Token: SeDebugPrivilege 3448 powershell.exe Token: SeDebugPrivilege 4064 powershell.exe Token: SeDebugPrivilege 1004 powershell.exe -
Suspicious use of WriteProcessMemory 25 IoCs
description pid Process procid_target PID 3420 wrote to memory of 3236 3420 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 93 PID 3420 wrote to memory of 3236 3420 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 93 PID 3420 wrote to memory of 3236 3420 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 93 PID 4676 wrote to memory of 2440 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 103 PID 4676 wrote to memory of 2440 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 103 PID 4676 wrote to memory of 2440 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 103 PID 4676 wrote to memory of 4156 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 106 PID 4676 wrote to memory of 4156 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 106 PID 4156 wrote to memory of 2180 4156 cmd.exe 108 PID 4156 wrote to memory of 2180 4156 cmd.exe 108 PID 4676 wrote to memory of 3888 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 109 PID 4676 wrote to memory of 3888 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 109 PID 4676 wrote to memory of 3888 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 109 PID 4676 wrote to memory of 3448 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 111 PID 4676 wrote to memory of 3448 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 111 PID 4676 wrote to memory of 3448 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 111 PID 4676 wrote to memory of 4488 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 113 PID 4676 wrote to memory of 4488 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 113 PID 4676 wrote to memory of 4488 4676 b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe 113 PID 4488 wrote to memory of 4064 4488 csrss.exe 114 PID 4488 wrote to memory of 4064 4488 csrss.exe 114 PID 4488 wrote to memory of 4064 4488 csrss.exe 114 PID 4488 wrote to memory of 1004 4488 csrss.exe 120 PID 4488 wrote to memory of 1004 4488 csrss.exe 120 PID 4488 wrote to memory of 1004 4488 csrss.exe 120 -
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\b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe"C:\Users\Admin\AppData\Local\Temp\b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3420 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3236
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C:\Users\Admin\AppData\Local\Temp\b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.exe"C:\Users\Admin\AppData\Local\Temp\b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb.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:4676 -
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:2440
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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:4156 -
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:2180
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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:3888
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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:3448
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4488 -
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:4064
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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:2528
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1968
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1004
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵PID:4980
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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⤵PID:5028
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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:1528
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵PID:3228
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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⤵PID:2016
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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
PID:760
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3712 --field-trial-handle=2284,i,15722001240173834669,15048020084704567542,262144 --variations-seed-version /prefetch:81⤵PID:4112
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵PID:756
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
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55e8cc4f091235ff1598c4ca3615c3418
SHA112bd5f840f0a6dbd2f9a63d4fcf2f0ec3032533e
SHA256e0569bb9f547845a47ceb36835718ec6593031876abee2bf0c176b61104fe3ab
SHA512f481f412cdbb35bb7d13a31dadff0cb1f1ae2650d7b0340fae11902cc1b3f3e2fe9a6b63ba89e86bf7147ac08c973da3686040bcbd2a516a974cf3cd78b67063
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d6f8add556904f5fed39ed3e25bfd566
SHA193615b40b51d3c06d1f19b12b46f317f40f3a4ff
SHA2566da4f5211057ce90907f58691b45652bf80d9d589f47c404d4c95348499f0515
SHA51294064a3c55123cf757b10fb82a510af0e4c7cb661f66852f71959345925caf85e0c604490199f4fa34d600920a411fb3cfe4dc4b688b3ec63680b39eb26ee170
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51d7d7d0c4744e77cd5b768aad3dfa202
SHA1693470a3ec4471a0cabf5d3d6b108534bab99e24
SHA2564bf4f6ca0cbffa26a9b77b2072af811f499bbf47444b3c87cf5c4ca5371bb117
SHA51249cc177edc1f773087aeed7569c0ecf7b415440a1fdfe898a6a67f2fb6c8941631292af8ecf5b433c60fcbd4f47d30e216336500199c099b24cf3946205a1c58
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5442011e7fb029cdade1373d2c2665f34
SHA1296da14da89be57f3ca9e96a51e5acc37c9d9564
SHA25669accb23f95df84adef52ee0bc697f2f7d1158fd836120cb72449c2c70a09398
SHA5120833438e032f10db0c5e6b7d4d77b617755ac860ba0594e75384fbf85d34c03312895cd637d439009debc03299e7b92169b42e5f94ab792a8becf812249ef99c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ba94c2d1401ac68b18e96d5c3d2dbbe4
SHA115c66cd0356b840ff0b951a3c9e3908e2a6caaec
SHA2566f28f9e2dc250fc4cc4f763702b3864b3935b9fa5bb1aefdb38696c80ca5bc7e
SHA51217203e097781a685d013ac67ee32a1bde164123ce825ab52d7e9757400169054806a12cd7c2eb1a8a4ba6550a42d90ca9bf06b422c0c9ed1cdda04247018ab0e
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Filesize
4.2MB
MD528d96049024c763784f8093ed28cbc30
SHA1c1ed32511ff2baaa7404e9f687d9fbc9e21429c6
SHA256b3af872333b2a53b6121f810936ad08e1bb84ef33c05a4ab9df8bf2ad9df96eb
SHA512e5ac6c8ffa9a3b200311181ac555e5ff879256dd1cf36d0fbc237abdce1d65d924ce20815d15bf606a0f7126796a6ba53d28710dd2fcf479fd2fba7635b18c98
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec