Analysis
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max time kernel
150s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
04-10-2023 15:53
Static task
static1
General
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Target
a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe
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Size
4.1MB
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MD5
fb2a5196d754b1ba9ac1d501064d8c86
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SHA1
6bd968d585e4aa9914f26e193cb6ad2d41aedabd
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SHA256
a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e
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SHA512
b764a1386504f91bdf3fe91cfe936bc454590725d8b8a934be1d38c01fa7ddadcd97a14aae9c7f9c94547fe1c6a69c771d7a4ecc30d24b8695335a0d9f9eb118
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SSDEEP
98304:OagZAWg+ZOXb8tQ8kg3eH1rrQ9amFv83VuY2HGoFN:XgGW0L8tQdg3eH1UbiVuYkvj
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral1/memory/4100-2-0x0000000002DE0000-0x00000000036CB000-memory.dmp family_glupteba behavioral1/memory/4100-3-0x0000000000400000-0x0000000000D66000-memory.dmp family_glupteba behavioral1/memory/4100-5-0x0000000000400000-0x0000000000D66000-memory.dmp family_glupteba behavioral1/memory/4100-26-0x0000000002DE0000-0x00000000036CB000-memory.dmp family_glupteba behavioral1/memory/4100-54-0x0000000000400000-0x0000000000D66000-memory.dmp family_glupteba behavioral1/memory/4100-62-0x0000000000400000-0x0000000000D66000-memory.dmp family_glupteba behavioral1/memory/1492-64-0x0000000000400000-0x0000000000D66000-memory.dmp family_glupteba behavioral1/memory/1492-92-0x0000000000400000-0x0000000000D66000-memory.dmp family_glupteba behavioral1/memory/1492-93-0x0000000002AA0000-0x0000000002EA8000-memory.dmp family_glupteba behavioral1/memory/1492-161-0x0000000000400000-0x0000000000D66000-memory.dmp family_glupteba behavioral1/memory/2888-262-0x0000000000400000-0x0000000000D66000-memory.dmp family_glupteba behavioral1/memory/2888-263-0x0000000000400000-0x0000000000D66000-memory.dmp family_glupteba behavioral1/memory/2888-264-0x0000000000400000-0x0000000000D66000-memory.dmp family_glupteba behavioral1/memory/2888-273-0x0000000000400000-0x0000000000D66000-memory.dmp family_glupteba behavioral1/memory/2888-275-0x0000000000400000-0x0000000000D66000-memory.dmp family_glupteba behavioral1/memory/2888-277-0x0000000000400000-0x0000000000D66000-memory.dmp family_glupteba behavioral1/memory/2888-279-0x0000000000400000-0x0000000000D66000-memory.dmp family_glupteba behavioral1/memory/2888-281-0x0000000000400000-0x0000000000D66000-memory.dmp family_glupteba behavioral1/memory/2888-283-0x0000000000400000-0x0000000000D66000-memory.dmp family_glupteba -
Modifies Windows Firewall 1 TTPs 1 IoCs
pid Process 4176 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2888 csrss.exe 4248 injector.exe 1584 windefender.exe 1104 windefender.exe -
resource yara_rule behavioral1/files/0x000b000000023124-267.dat upx behavioral1/files/0x000b000000023124-269.dat upx behavioral1/files/0x000b000000023124-270.dat upx behavioral1/memory/1584-272-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1104-274-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/1104-278-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe File created C:\Windows\rss\csrss.exe a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4912 sc.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 2188 4100 WerFault.exe 83 1636 1492 WerFault.exe 98 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3456 schtasks.exe 548 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust 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,-401 = "Arabic Daylight Time" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-962 = "Paraguay Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-731 = "Fiji Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\@tzres.dll,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-1802 = "Line Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-365 = "Middle East Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-2371 = "Easter Island Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-2492 = "Aus Central W. Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-162 = "Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.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\@tzres.dll,-721 = "Central Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.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\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-512 = "Central Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4396 powershell.exe 4396 powershell.exe 4100 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 4100 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 4028 powershell.exe 4028 powershell.exe 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 4772 powershell.exe 4772 powershell.exe 4772 powershell.exe 4576 powershell.exe 4576 powershell.exe 4576 powershell.exe 3656 powershell.exe 3656 powershell.exe 4220 powershell.exe 4220 powershell.exe 5028 powershell.exe 5028 powershell.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 2888 csrss.exe 2888 csrss.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 2888 csrss.exe 2888 csrss.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe 4248 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4396 powershell.exe Token: SeDebugPrivilege 4100 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Token: SeImpersonatePrivilege 4100 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe Token: SeDebugPrivilege 4028 powershell.exe Token: SeDebugPrivilege 4772 powershell.exe Token: SeDebugPrivilege 4576 powershell.exe Token: SeDebugPrivilege 3656 powershell.exe Token: SeDebugPrivilege 4220 powershell.exe Token: SeDebugPrivilege 5028 powershell.exe Token: SeSystemEnvironmentPrivilege 2888 csrss.exe Token: SeSecurityPrivilege 4912 sc.exe Token: SeSecurityPrivilege 4912 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4100 wrote to memory of 4396 4100 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 89 PID 4100 wrote to memory of 4396 4100 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 89 PID 4100 wrote to memory of 4396 4100 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 89 PID 1492 wrote to memory of 4028 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 101 PID 1492 wrote to memory of 4028 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 101 PID 1492 wrote to memory of 4028 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 101 PID 1492 wrote to memory of 4248 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 105 PID 1492 wrote to memory of 4248 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 105 PID 4248 wrote to memory of 4176 4248 cmd.exe 107 PID 4248 wrote to memory of 4176 4248 cmd.exe 107 PID 1492 wrote to memory of 4772 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 108 PID 1492 wrote to memory of 4772 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 108 PID 1492 wrote to memory of 4772 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 108 PID 1492 wrote to memory of 4576 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 110 PID 1492 wrote to memory of 4576 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 110 PID 1492 wrote to memory of 4576 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 110 PID 1492 wrote to memory of 2888 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 113 PID 1492 wrote to memory of 2888 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 113 PID 1492 wrote to memory of 2888 1492 a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe 113 PID 2888 wrote to memory of 3656 2888 csrss.exe 120 PID 2888 wrote to memory of 3656 2888 csrss.exe 120 PID 2888 wrote to memory of 3656 2888 csrss.exe 120 PID 2888 wrote to memory of 4220 2888 csrss.exe 126 PID 2888 wrote to memory of 4220 2888 csrss.exe 126 PID 2888 wrote to memory of 4220 2888 csrss.exe 126 PID 2888 wrote to memory of 5028 2888 csrss.exe 129 PID 2888 wrote to memory of 5028 2888 csrss.exe 129 PID 2888 wrote to memory of 5028 2888 csrss.exe 129 PID 2888 wrote to memory of 4248 2888 csrss.exe 131 PID 2888 wrote to memory of 4248 2888 csrss.exe 131 PID 1584 wrote to memory of 3572 1584 windefender.exe 138 PID 1584 wrote to memory of 3572 1584 windefender.exe 138 PID 1584 wrote to memory of 3572 1584 windefender.exe 138 PID 3572 wrote to memory of 4912 3572 cmd.exe 139 PID 3572 wrote to memory of 4912 3572 cmd.exe 139 PID 3572 wrote to memory of 4912 3572 cmd.exe 139 -
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\a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe"C:\Users\Admin\AppData\Local\Temp\a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4100 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4396
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C:\Users\Admin\AppData\Local\Temp\a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.exe"C:\Users\Admin\AppData\Local\Temp\a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e.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:1492 -
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:4028
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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:4248 -
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:4176
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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:4772
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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:4576
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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:2888 -
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:3656
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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:3456
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4832
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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:4220
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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:5028
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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:4248
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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:548
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1584 -
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:3572 -
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:4912
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 8003⤵
- Program crash
PID:1636
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 8842⤵
- Program crash
PID:2188
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4100 -ip 41001⤵PID:1732
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1492 -ip 14921⤵PID:2984
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1104
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
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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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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c4c28d96f3989a379cff9343c2e5570e
SHA168d0119d19e2279afb67610219a1ee693094cca2
SHA2565a982432210dd3913e7d27a8aad5c467dace5fd5db43a6a8bd9ff15a3c7f840e
SHA512bc3f819217aafc567dbea992602aed975e9ac37ad0af7cde21921114cf6261bcc1f4dd648663db03c2c2eea1ae45597e0a2d586c6448948fdb14d5dd4bc0f157
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cc0e4fca6ecd323a31b792361499e5d1
SHA1a7a05c83ceb99194dec2ec7ef599c1816511ae3a
SHA25684c8125ff1fc33c4a329093a62efe3d59dd9cdcbe47b742c9860cccf35bbf357
SHA5128ac86e8c99e130fd4bed082c75451c8717306fd92801e38c23924c252d673edce52410e1db3e6f6327e9299656257f94b480f16d7c62beb4304c59f8974533ad
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5570b3c8488eedd60b986e5fb3c26a159
SHA12dc6934a249065256c5ca16d1ed8805c26d53216
SHA256a1724efeb9b9d1a39cc50482598c776467c43d69756e8f026a124850d3dff4a6
SHA512017b3292ab6398b6c244b3e66ea97f6800206789400a9c7ffd1658aab8615d2b3ff6d5864baaeb2bea12fc3132eae53c8addeee3e08b29a6e294cc8e62b59263
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55df84ac72ce475ca563331ab7c372f25
SHA15a9f4b4d46071fb5cfe5c8e9ab8d0467a268b545
SHA25680310371089e349a4eb0c98ce9d3fe494094a0841bfdb91dc95347320e4d8289
SHA512cf8754af476b06200ec2dd595154f809af3c119236174f725afcf626f7ff6f2a48b727ffcfdec5ad46ac967106fe2a08f6a1e782e31b63395d9bc5d8dcc1971c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5984974f070e2c02600892589afd7b8b8
SHA1434c59485ce0bca2cacdcb48578af0277db5a0e6
SHA256e371551fc63e5d4840e29eaa7a87290697c4586e6d35b65e6ab655b41f6421e3
SHA5129452f76a01a4ddb33b62baca71fd308251f77491a74c48c8d9fbc6e035821dedbd4706af96995ce82e32867e1fab145eb33807cc420d3a43319308d14311c0a4
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Filesize
4.1MB
MD5fb2a5196d754b1ba9ac1d501064d8c86
SHA16bd968d585e4aa9914f26e193cb6ad2d41aedabd
SHA256a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e
SHA512b764a1386504f91bdf3fe91cfe936bc454590725d8b8a934be1d38c01fa7ddadcd97a14aae9c7f9c94547fe1c6a69c771d7a4ecc30d24b8695335a0d9f9eb118
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Filesize
4.1MB
MD5fb2a5196d754b1ba9ac1d501064d8c86
SHA16bd968d585e4aa9914f26e193cb6ad2d41aedabd
SHA256a0ee6aa2a1981b4775e83dfcd7bcec8be0b9e60fec6dfee8c16c7bfba40f772e
SHA512b764a1386504f91bdf3fe91cfe936bc454590725d8b8a934be1d38c01fa7ddadcd97a14aae9c7f9c94547fe1c6a69c771d7a4ecc30d24b8695335a0d9f9eb118
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec