Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
07-06-2023 15:56
Static task
static1
General
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Target
299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe
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Size
4.2MB
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MD5
c424a7bdc377c4f737d7576e6e584c5b
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SHA1
75e6139af0541d497b506d40f0506c1126da9467
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SHA256
299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0
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SHA512
8283c3b7115e362cb94e7ae01c2c2fec13d32794326f2fbbd4801adafd455c0a7e9067e9298b121ae3350db145b8f474312aaecd96857c771d3714113db3c4c8
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SSDEEP
98304:gXBXbxwMASR72enw18wQxWVMeT7u+9UVKOQ5LwfsZVd:8BLxkG72BAWVJXuzQ5L9
Malware Config
Signatures
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Glupteba payload 17 IoCs
Processes:
resource yara_rule behavioral1/memory/1860-134-0x0000000004B80000-0x000000000546B000-memory.dmp family_glupteba behavioral1/memory/1860-169-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/1860-172-0x0000000004B80000-0x000000000546B000-memory.dmp family_glupteba behavioral1/memory/1860-191-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/4636-206-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/4636-264-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/1240-315-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/1240-348-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/1240-350-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/1240-352-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/1240-354-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/1240-356-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/1240-358-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/1240-360-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/1240-362-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/1240-364-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba behavioral1/memory/1240-366-0x0000000000400000-0x000000000295A000-memory.dmp family_glupteba -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid process 1240 csrss.exe 4372 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Set value (str) \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\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\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 File created 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:
299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe -
Drops file in Windows directory 2 IoCs
Processes:
299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exedescription ioc process File opened for modification C:\Windows\rss 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe File created C:\Windows\rss\csrss.exe 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.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 4768 schtasks.exe 2364 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exe299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exepowershell.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates 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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed 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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs 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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exepowershell.exe299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 3392 powershell.exe 3392 powershell.exe 1860 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe 1860 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe 5068 powershell.exe 5068 powershell.exe 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe 2948 powershell.exe 2948 powershell.exe 2624 powershell.exe 2624 powershell.exe 1040 powershell.exe 1040 powershell.exe 2252 powershell.exe 2252 powershell.exe 3756 powershell.exe 3756 powershell.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 1240 csrss.exe 1240 csrss.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 1240 csrss.exe 1240 csrss.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe 4372 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
Processes:
powershell.exe299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exedescription pid process Token: SeDebugPrivilege 3392 powershell.exe Token: SeDebugPrivilege 1860 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Token: SeImpersonatePrivilege 1860 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe Token: SeDebugPrivilege 5068 powershell.exe Token: SeDebugPrivilege 2948 powershell.exe Token: SeDebugPrivilege 2624 powershell.exe Token: SeDebugPrivilege 1040 powershell.exe Token: SeDebugPrivilege 2252 powershell.exe Token: SeDebugPrivilege 3756 powershell.exe Token: SeSystemEnvironmentPrivilege 1240 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.execmd.execsrss.exedescription pid process target process PID 1860 wrote to memory of 3392 1860 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe powershell.exe PID 1860 wrote to memory of 3392 1860 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe powershell.exe PID 1860 wrote to memory of 3392 1860 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe powershell.exe PID 4636 wrote to memory of 5068 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe powershell.exe PID 4636 wrote to memory of 5068 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe powershell.exe PID 4636 wrote to memory of 5068 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe powershell.exe PID 4636 wrote to memory of 3756 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe cmd.exe PID 4636 wrote to memory of 3756 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe cmd.exe PID 3756 wrote to memory of 3432 3756 cmd.exe netsh.exe PID 3756 wrote to memory of 3432 3756 cmd.exe netsh.exe PID 4636 wrote to memory of 2948 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe powershell.exe PID 4636 wrote to memory of 2948 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe powershell.exe PID 4636 wrote to memory of 2948 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe powershell.exe PID 4636 wrote to memory of 2624 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe powershell.exe PID 4636 wrote to memory of 2624 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe powershell.exe PID 4636 wrote to memory of 2624 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe powershell.exe PID 4636 wrote to memory of 1240 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe csrss.exe PID 4636 wrote to memory of 1240 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe csrss.exe PID 4636 wrote to memory of 1240 4636 299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe csrss.exe PID 1240 wrote to memory of 1040 1240 csrss.exe powershell.exe PID 1240 wrote to memory of 1040 1240 csrss.exe powershell.exe PID 1240 wrote to memory of 1040 1240 csrss.exe powershell.exe PID 1240 wrote to memory of 2252 1240 csrss.exe powershell.exe PID 1240 wrote to memory of 2252 1240 csrss.exe powershell.exe PID 1240 wrote to memory of 2252 1240 csrss.exe powershell.exe PID 1240 wrote to memory of 3756 1240 csrss.exe powershell.exe PID 1240 wrote to memory of 3756 1240 csrss.exe powershell.exe PID 1240 wrote to memory of 3756 1240 csrss.exe powershell.exe PID 1240 wrote to memory of 4372 1240 csrss.exe injector.exe PID 1240 wrote to memory of 4372 1240 csrss.exe injector.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\299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe"C:\Users\Admin\AppData\Local\Temp\299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.exe"C:\Users\Admin\AppData\Local\Temp\299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0.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
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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
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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
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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
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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
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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
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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.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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
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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)
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵
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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
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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
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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
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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)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_izc1wue3.3em.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeFilesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeFilesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.logFilesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-InteractiveFilesize
19KB
MD5beacfee320eb3c7535be3f5ed55cef54
SHA16797804ae0662d78bca618249f39a143c5c5f196
SHA2569f78b63745136db2fc79cca282bb3289e67c393ba4be2025add4400f5f66b373
SHA51271bc87c644418803844815d76b240dd3b1185de8a7e2e9d20fd74398e50fd13d2c6312a0e15bfdc8e4ea81a461e7ac3a3e711066e6ad29447a048c2672ee9b57
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-InteractiveFilesize
19KB
MD538a99938582ba87e6eedb648fa3a7c02
SHA196e3ec8c9e705ab37cbc9ed2a92009bd517d4bc4
SHA2565fe0e1b99abd8c57749e9736ac4fcb39f5f45c76febdf86f71fb12b72d51adeb
SHA5124f18681dab9863212adcf57900766729fd9d6e133686c34b1e076ef9bc491134c2f381d95e3c01881cc010591a1c397f3b21b677881d9f547318ba02135d421f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-InteractiveFilesize
19KB
MD59a975d7752ce062c79d82cc7dac2598e
SHA1f5db21d8752b2d3314c8c5b0a867e42926f0bd8a
SHA2564f98a6f7910504a18e6963dead4c265b717ddf21388bf6b796e2bcb18a8e77e2
SHA512111eb0c6672cc7265b37856db465b5887d8e736dd35a10da8e7a856021605b9d8344cd9c923f9d8be3a661d915e3c0a01ab76ba9f4be60cd4c65f7a7a17a04a2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-InteractiveFilesize
19KB
MD5928cb2912cbe36d16821cd76f33664b0
SHA13b7d2917df708258044aae97c80cde85d74b514c
SHA256de747d2abbff8df73fd10b87ba602848c97cad913531286f6b2a3f2af86aa763
SHA512f347f21a9deb4b3698a51de0e7e1cb005f77d3a3c0c0f0732cec8eb9760612d706653786168c861dcfcfc02322a444fe34562e10b6f5c0738f8d71ee2cf824f3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-InteractiveFilesize
19KB
MD55700f3a60b4f6a440177c8d17fe2fc6d
SHA1c403016ed4cf69c89f39fe80b0de57e2daf17662
SHA2567793811aa370582ff12e7f488d79e12b476a56d8e796a0b501c110dca56314c5
SHA51260e9d83f918f03150ce2fa696d80ff2fa0cbb587843c4174ec003723e503703a4c3ae78db262d03bf0a3767df7189c0b82d45084f118117c387ef7b158a5859b
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C:\Windows\rss\csrss.exeFilesize
4.2MB
MD5c424a7bdc377c4f737d7576e6e584c5b
SHA175e6139af0541d497b506d40f0506c1126da9467
SHA256299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0
SHA5128283c3b7115e362cb94e7ae01c2c2fec13d32794326f2fbbd4801adafd455c0a7e9067e9298b121ae3350db145b8f474312aaecd96857c771d3714113db3c4c8
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C:\Windows\rss\csrss.exeFilesize
4.2MB
MD5c424a7bdc377c4f737d7576e6e584c5b
SHA175e6139af0541d497b506d40f0506c1126da9467
SHA256299dae59fd9c4586f7a58450463570d0ebb4521f7c0f3092439568ce1bfd4bd0
SHA5128283c3b7115e362cb94e7ae01c2c2fec13d32794326f2fbbd4801adafd455c0a7e9067e9298b121ae3350db145b8f474312aaecd96857c771d3714113db3c4c8
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memory/1040-275-0x0000000004E80000-0x0000000004E90000-memory.dmpFilesize
64KB
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memory/1040-287-0x0000000004E80000-0x0000000004E90000-memory.dmpFilesize
64KB
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memory/1040-276-0x0000000070130000-0x000000007017C000-memory.dmpFilesize
304KB
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memory/1040-277-0x00000000708D0000-0x0000000070C24000-memory.dmpFilesize
3.3MB
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memory/1040-288-0x000000007EE20000-0x000000007EE30000-memory.dmpFilesize
64KB
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memory/1240-364-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/1240-352-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/1240-348-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/1240-360-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/1240-366-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/1240-362-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/1240-350-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/1240-354-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/1240-356-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/1240-315-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/1240-358-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/1860-172-0x0000000004B80000-0x000000000546B000-memory.dmpFilesize
8.9MB
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memory/1860-134-0x0000000004B80000-0x000000000546B000-memory.dmpFilesize
8.9MB
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memory/1860-191-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/1860-169-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/2252-313-0x000000007F4B0000-0x000000007F4C0000-memory.dmpFilesize
64KB
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memory/2252-303-0x00000000707E0000-0x0000000070B34000-memory.dmpFilesize
3.3MB
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memory/2252-302-0x0000000070050000-0x000000007009C000-memory.dmpFilesize
304KB
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memory/2252-301-0x0000000004AB0000-0x0000000004AC0000-memory.dmpFilesize
64KB
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memory/2624-243-0x0000000004A10000-0x0000000004A20000-memory.dmpFilesize
64KB
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memory/2624-257-0x000000007FD70000-0x000000007FD80000-memory.dmpFilesize
64KB
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memory/2624-244-0x0000000004A10000-0x0000000004A20000-memory.dmpFilesize
64KB
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memory/2624-245-0x0000000070130000-0x000000007017C000-memory.dmpFilesize
304KB
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memory/2624-246-0x00000000708B0000-0x0000000070C04000-memory.dmpFilesize
3.3MB
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memory/2624-256-0x0000000004A10000-0x0000000004A20000-memory.dmpFilesize
64KB
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memory/2948-218-0x0000000002DE0000-0x0000000002DF0000-memory.dmpFilesize
64KB
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memory/2948-220-0x0000000070130000-0x000000007017C000-memory.dmpFilesize
304KB
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memory/2948-221-0x00000000708D0000-0x0000000070C24000-memory.dmpFilesize
3.3MB
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memory/2948-219-0x0000000002DE0000-0x0000000002DF0000-memory.dmpFilesize
64KB
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memory/3392-168-0x00000000070B0000-0x00000000070CE000-memory.dmpFilesize
120KB
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memory/3392-138-0x0000000004C80000-0x0000000004CA2000-memory.dmpFilesize
136KB
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memory/3392-174-0x0000000007270000-0x000000000727E000-memory.dmpFilesize
56KB
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memory/3392-135-0x00000000025C0000-0x00000000025F6000-memory.dmpFilesize
216KB
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memory/3392-173-0x00000000072C0000-0x0000000007356000-memory.dmpFilesize
600KB
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memory/3392-176-0x00000000072B0000-0x00000000072B8000-memory.dmpFilesize
32KB
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memory/3392-171-0x000000007FBA0000-0x000000007FBB0000-memory.dmpFilesize
64KB
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memory/3392-136-0x00000000025B0000-0x00000000025C0000-memory.dmpFilesize
64KB
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memory/3392-170-0x0000000007200000-0x000000000720A000-memory.dmpFilesize
40KB
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memory/3392-137-0x0000000004D00000-0x0000000005328000-memory.dmpFilesize
6.2MB
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memory/3392-158-0x00000000708D0000-0x0000000070C24000-memory.dmpFilesize
3.3MB
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memory/3392-155-0x00000000025B0000-0x00000000025C0000-memory.dmpFilesize
64KB
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memory/3392-139-0x00000000053A0000-0x0000000005406000-memory.dmpFilesize
408KB
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memory/3392-140-0x0000000005410000-0x0000000005476000-memory.dmpFilesize
408KB
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memory/3392-150-0x0000000005B60000-0x0000000005B7E000-memory.dmpFilesize
120KB
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memory/3392-157-0x0000000070130000-0x000000007017C000-memory.dmpFilesize
304KB
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memory/3392-156-0x00000000070D0000-0x0000000007102000-memory.dmpFilesize
200KB
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memory/3392-175-0x0000000007360000-0x000000000737A000-memory.dmpFilesize
104KB
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memory/3392-151-0x00000000060C0000-0x0000000006104000-memory.dmpFilesize
272KB
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memory/3392-152-0x0000000006E90000-0x0000000006F06000-memory.dmpFilesize
472KB
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memory/3392-153-0x0000000007590000-0x0000000007C0A000-memory.dmpFilesize
6.5MB
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memory/3392-154-0x0000000006F10000-0x0000000006F2A000-memory.dmpFilesize
104KB
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memory/3756-327-0x0000000005320000-0x0000000005330000-memory.dmpFilesize
64KB
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memory/3756-328-0x0000000070050000-0x000000007009C000-memory.dmpFilesize
304KB
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memory/3756-330-0x000000007F890000-0x000000007F8A0000-memory.dmpFilesize
64KB
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memory/3756-331-0x00000000701F0000-0x0000000070544000-memory.dmpFilesize
3.3MB
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memory/3756-329-0x0000000005320000-0x0000000005330000-memory.dmpFilesize
64KB
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memory/3756-326-0x0000000005320000-0x0000000005330000-memory.dmpFilesize
64KB
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memory/4636-206-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/4636-264-0x0000000000400000-0x000000000295A000-memory.dmpFilesize
37.4MB
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memory/5068-193-0x00000000708B0000-0x0000000070C04000-memory.dmpFilesize
3.3MB
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memory/5068-203-0x0000000004D00000-0x0000000004D10000-memory.dmpFilesize
64KB
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memory/5068-190-0x0000000004D00000-0x0000000004D10000-memory.dmpFilesize
64KB
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memory/5068-192-0x0000000070130000-0x000000007017C000-memory.dmpFilesize
304KB
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memory/5068-189-0x0000000004D00000-0x0000000004D10000-memory.dmpFilesize
64KB