Analysis
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max time kernel
149s -
max time network
140s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
27-03-2024 20:11
Static task
static1
Behavioral task
behavioral1
Sample
c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe
Resource
win10v2004-20240226-en
General
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Target
c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe
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Size
4.1MB
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MD5
130cf6d01653953b69ee696c4d08a7fd
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SHA1
7ef543d4cfd2ac4b458c620f65b7175484beea22
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SHA256
c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad
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SHA512
425a4622da9b9ce3c4b026409661b4883b8f12b08dc1b94bcb29a0aac5facc0d9574c372169f66549ff6b280b1277e4572fb712cd9d100b587d538264680bd05
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SSDEEP
98304:lKRgzbnrqlEHV+iMzOaisXYsZYj1np6b4jV9X/fWiGsrCqzq8F:drQuavOhUbMV9MsrCo
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/3048-2-0x00000000030B0000-0x000000000399B000-memory.dmp family_glupteba behavioral2/memory/3048-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1184-45-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3048-46-0x00000000030B0000-0x000000000399B000-memory.dmp family_glupteba behavioral2/memory/3048-71-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1184-136-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1184-142-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/436-233-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/436-240-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/436-249-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/436-252-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/436-255-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/436-258-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/436-261-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/436-264-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/436-267-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/436-270-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/436-273-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/436-276-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/436-279-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1020 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 436 csrss.exe 3200 injector.exe 1108 windefender.exe 1616 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a797-243.dat upx behavioral2/memory/1108-247-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1616-250-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1616-256-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1616-265-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3594324687-1993884830-4019639329-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe Set value (str) \REGISTRY\USER\S-1-5-21-3594324687-1993884830-4019639329-1000\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 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 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 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe File created C:\Windows\rss\csrss.exe c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.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 4456 sc.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 1892 1992 WerFault.exe 78 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1452 schtasks.exe 3168 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\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2182 = "Astrakhan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.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\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-142 = "Canada Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-691 = "Tasmania Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2571 = "Turks and Caicos Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-741 = "New Zealand Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-232 = "Hawaiian Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time" c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-511 = "Central Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 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\22\52C64B7E\@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1992 powershell.exe 1992 powershell.exe 3048 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 3048 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 1112 powershell.exe 1112 powershell.exe 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 2740 powershell.exe 2740 powershell.exe 3852 powershell.exe 3852 powershell.exe 2052 powershell.exe 2052 powershell.exe 2856 powershell.exe 2856 powershell.exe 1848 powershell.exe 1848 powershell.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 436 csrss.exe 436 csrss.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 436 csrss.exe 436 csrss.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 436 csrss.exe 436 csrss.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe 3200 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1992 powershell.exe Token: SeDebugPrivilege 3048 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe Token: SeImpersonatePrivilege 3048 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe Token: SeDebugPrivilege 1112 powershell.exe Token: SeDebugPrivilege 2740 powershell.exe Token: SeDebugPrivilege 3852 powershell.exe Token: SeDebugPrivilege 2052 powershell.exe Token: SeDebugPrivilege 2856 powershell.exe Token: SeDebugPrivilege 1848 powershell.exe Token: SeSystemEnvironmentPrivilege 436 csrss.exe Token: SeSecurityPrivilege 4456 sc.exe Token: SeSecurityPrivilege 4456 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3048 wrote to memory of 1992 3048 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 78 PID 3048 wrote to memory of 1992 3048 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 78 PID 3048 wrote to memory of 1992 3048 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 78 PID 1184 wrote to memory of 1112 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 86 PID 1184 wrote to memory of 1112 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 86 PID 1184 wrote to memory of 1112 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 86 PID 1184 wrote to memory of 2808 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 88 PID 1184 wrote to memory of 2808 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 88 PID 2808 wrote to memory of 1020 2808 cmd.exe 90 PID 2808 wrote to memory of 1020 2808 cmd.exe 90 PID 1184 wrote to memory of 2740 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 91 PID 1184 wrote to memory of 2740 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 91 PID 1184 wrote to memory of 2740 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 91 PID 1184 wrote to memory of 3852 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 93 PID 1184 wrote to memory of 3852 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 93 PID 1184 wrote to memory of 3852 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 93 PID 1184 wrote to memory of 436 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 95 PID 1184 wrote to memory of 436 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 95 PID 1184 wrote to memory of 436 1184 c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe 95 PID 436 wrote to memory of 2052 436 csrss.exe 96 PID 436 wrote to memory of 2052 436 csrss.exe 96 PID 436 wrote to memory of 2052 436 csrss.exe 96 PID 436 wrote to memory of 2856 436 csrss.exe 102 PID 436 wrote to memory of 2856 436 csrss.exe 102 PID 436 wrote to memory of 2856 436 csrss.exe 102 PID 436 wrote to memory of 1848 436 csrss.exe 104 PID 436 wrote to memory of 1848 436 csrss.exe 104 PID 436 wrote to memory of 1848 436 csrss.exe 104 PID 436 wrote to memory of 3200 436 csrss.exe 106 PID 436 wrote to memory of 3200 436 csrss.exe 106 PID 1108 wrote to memory of 1536 1108 windefender.exe 112 PID 1108 wrote to memory of 1536 1108 windefender.exe 112 PID 1108 wrote to memory of 1536 1108 windefender.exe 112 PID 1536 wrote to memory of 4456 1536 cmd.exe 113 PID 1536 wrote to memory of 4456 1536 cmd.exe 113 PID 1536 wrote to memory of 4456 1536 cmd.exe 113 -
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\c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe"C:\Users\Admin\AppData\Local\Temp\c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3048 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1992 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1992 -s 21523⤵
- Program crash
PID:1892
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C:\Users\Admin\AppData\Local\Temp\c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.exe"C:\Users\Admin\AppData\Local\Temp\c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad.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:1184 -
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:1112
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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:2808 -
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:1020
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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:2740
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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:3852
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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:436 -
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:2052
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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:1452
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2368
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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:2856
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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:1848
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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:3200
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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:3168
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1108 -
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:1536 -
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:4456
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1992 -ip 19921⤵PID:4508
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1616
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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD593412fb7752698eeb498733c66bb67a1
SHA1e722d170267afa1459af1ce78fcd39ab7a90825f
SHA2561e8f132ddbc63ad1976f7a92c44706153054ab92f3a1c968444163e02b914a79
SHA512cae7617421600c9e188fb3b20d606c3ebf389695ea19cc9352c0e10b880ba198010552423f497659507becf625813bee534308a2553d9dbe19ee21dc3160e647
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f38a8ee0e7c5618888a4c3de090edd57
SHA135901c05cc2edf3dd2a9456c99610add1934fbe2
SHA256c2ad028605c68d1b4c051bb818bc5297441bcd82c8ea30decb1362a4fb96bf0e
SHA512d86e53c745e88a1d71eafdacca2abaf80383dbf09ae0f4116eb4b99161143a24c9961878162f9a3395333260c3219526562dd98dd059eb90ccbf0d20b66930ac
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c056943003276688b26a9b5540196822
SHA180924ec5360ca9c5cfa9420824cbd68f4a9594a8
SHA256fc54a470bf57b1bded759ae9cbeac9e41dc8cb8bf3b5a0cca094d08bb7afd1b3
SHA512b4d5e6222c92d4eb6ddd15ac4dd2c3c492714e525adbbf7073ca96737d84c0d2b9843073eb0ad534d2e29af806238be1420de80119dfe17994c82ce81c608a0d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50799b4327e399178fdc1dbbddbe45948
SHA1e3c21e52dd6d113d560419f5566bb3b1336d8917
SHA256482bb5016cb215aee76dd7f5239c7a39a00b6edab0fea17bc4d98e978ffd86d1
SHA512a4e7537edc15800cec90e2ab8bd9630b1ce85b93524d2122ebae885793cc9c8e136eff0b9bb5053776d23451e5e2bf86667f08fd259cc7000d37a27cdef9da6a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e00eacf87513167a2c088a70d074d155
SHA18aa1d84e706c47d56e3b707ae2a431c3c5f9a444
SHA2561336455f0c549fe7d89be15d79cd1f23047620ff6a649805da258eaec34d84de
SHA512c3376b9d3b248504ace79faac19c659a64849a2a1828cd861fbddea18bddf129a0912c5a84e21e8b1872db5dd534a5c4b01c0f193f3094221e308868f1b6bb9a
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Filesize
4.1MB
MD5130cf6d01653953b69ee696c4d08a7fd
SHA17ef543d4cfd2ac4b458c620f65b7175484beea22
SHA256c734c4f5f98a1d9b8116874871e24a6593f59be9620bf5c658b385334c4543ad
SHA512425a4622da9b9ce3c4b026409661b4883b8f12b08dc1b94bcb29a0aac5facc0d9574c372169f66549ff6b280b1277e4572fb712cd9d100b587d538264680bd05
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec