Analysis
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max time kernel
150s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
03/05/2024, 12:58
Static task
static1
Behavioral task
behavioral1
Sample
42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe
Resource
win10v2004-20240426-en
General
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Target
42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe
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Size
4.2MB
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MD5
e26cd86799540bd4595992a421a61dea
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SHA1
cf52ca4b56c075fb8bf5054126e5c3db09ffdfec
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SHA256
42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d
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SHA512
43ffc44c8a02306b2303f855e96d566678dce662f61197ce783024c3670b3db4aeecc6ffd968057089c727545be025b808f4b33bf7f902bca1ec5dc3afcca23d
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SSDEEP
98304:d66HNO0ylQtNh50u8nZN5r+4ZcMdFNSdJaf0a3yQkwIGjeLr:d5zyCNYuQZdcMdFNGa3yIIGjs
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/1684-2-0x0000000003F10000-0x00000000047FB000-memory.dmp family_glupteba behavioral2/memory/1684-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1684-89-0x0000000003F10000-0x00000000047FB000-memory.dmp family_glupteba behavioral2/memory/1684-87-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/4428-124-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/1684-137-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2160-200-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2160-211-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2160-214-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2160-217-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2160-220-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2160-223-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2160-226-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2160-229-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2160-232-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2160-235-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2160-238-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2160-241-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba behavioral2/memory/2160-244-0x0000000000400000-0x0000000001DFB000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4324 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2160 csrss.exe 728 injector.exe 3004 windefender.exe 1036 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa3e-204.dat upx behavioral2/memory/3004-205-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1036-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3004-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1036-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1036-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3938118698-2964058152-2337880935-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Set value (str) \REGISTRY\USER\S-1-5-21-3938118698-2964058152-2337880935-1000\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\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.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe File created C:\Windows\rss\csrss.exe 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.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 5000 sc.exe -
pid Process 4656 powershell.exe 2368 powershell.exe 1576 powershell.exe 3320 powershell.exe 3516 powershell.exe 3932 powershell.exe 1904 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3024 schtasks.exe 3432 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process 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\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.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\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-591 = "Malay Peninsula Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-632 = "Tokyo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs 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\2a\52C64B7E\@tzres.dll,-401 = "Arabic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates 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\2a\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-722 = "Central Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1721 = "Libya Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1411 = "Syria Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3516 powershell.exe 3516 powershell.exe 1684 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 1684 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 3932 powershell.exe 3932 powershell.exe 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 1904 powershell.exe 1904 powershell.exe 4656 powershell.exe 4656 powershell.exe 2368 powershell.exe 2368 powershell.exe 1576 powershell.exe 1576 powershell.exe 3320 powershell.exe 3320 powershell.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe 2160 csrss.exe 2160 csrss.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe 2160 csrss.exe 2160 csrss.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe 2160 csrss.exe 2160 csrss.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe 728 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3516 powershell.exe Token: SeDebugPrivilege 1684 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Token: SeImpersonatePrivilege 1684 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe Token: SeDebugPrivilege 3932 powershell.exe Token: SeDebugPrivilege 1904 powershell.exe Token: SeDebugPrivilege 4656 powershell.exe Token: SeDebugPrivilege 2368 powershell.exe Token: SeDebugPrivilege 1576 powershell.exe Token: SeDebugPrivilege 3320 powershell.exe Token: SeSystemEnvironmentPrivilege 2160 csrss.exe Token: SeSecurityPrivilege 5000 sc.exe Token: SeSecurityPrivilege 5000 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1684 wrote to memory of 3516 1684 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 82 PID 1684 wrote to memory of 3516 1684 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 82 PID 1684 wrote to memory of 3516 1684 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 82 PID 4428 wrote to memory of 3932 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 88 PID 4428 wrote to memory of 3932 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 88 PID 4428 wrote to memory of 3932 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 88 PID 4428 wrote to memory of 3032 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 90 PID 4428 wrote to memory of 3032 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 90 PID 3032 wrote to memory of 4324 3032 cmd.exe 92 PID 3032 wrote to memory of 4324 3032 cmd.exe 92 PID 4428 wrote to memory of 1904 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 93 PID 4428 wrote to memory of 1904 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 93 PID 4428 wrote to memory of 1904 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 93 PID 4428 wrote to memory of 4656 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 95 PID 4428 wrote to memory of 4656 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 95 PID 4428 wrote to memory of 4656 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 95 PID 4428 wrote to memory of 2160 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 97 PID 4428 wrote to memory of 2160 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 97 PID 4428 wrote to memory of 2160 4428 42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe 97 PID 2160 wrote to memory of 2368 2160 csrss.exe 98 PID 2160 wrote to memory of 2368 2160 csrss.exe 98 PID 2160 wrote to memory of 2368 2160 csrss.exe 98 PID 2160 wrote to memory of 1576 2160 csrss.exe 104 PID 2160 wrote to memory of 1576 2160 csrss.exe 104 PID 2160 wrote to memory of 1576 2160 csrss.exe 104 PID 2160 wrote to memory of 3320 2160 csrss.exe 106 PID 2160 wrote to memory of 3320 2160 csrss.exe 106 PID 2160 wrote to memory of 3320 2160 csrss.exe 106 PID 2160 wrote to memory of 728 2160 csrss.exe 108 PID 2160 wrote to memory of 728 2160 csrss.exe 108 PID 3004 wrote to memory of 3152 3004 windefender.exe 114 PID 3004 wrote to memory of 3152 3004 windefender.exe 114 PID 3004 wrote to memory of 3152 3004 windefender.exe 114 PID 3152 wrote to memory of 5000 3152 cmd.exe 115 PID 3152 wrote to memory of 5000 3152 cmd.exe 115 PID 3152 wrote to memory of 5000 3152 cmd.exe 115 -
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\42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe"C:\Users\Admin\AppData\Local\Temp\42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1684 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3516
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C:\Users\Admin\AppData\Local\Temp\42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.exe"C:\Users\Admin\AppData\Local\Temp\42357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d.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:4428 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3932
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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:3032 -
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:4324
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1904
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4656
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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:2160 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2368
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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:3024
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4836
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1576
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3320
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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:728
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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:3432
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3004 -
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:3152 -
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:5000
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1036
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
MD54ce7bd3d0011a37364875b39e7647b25
SHA18d68c33e4192c2c8f71cbb2e2dd064602d693fdc
SHA2561d54e0a2e28d96cad2f8b3a3328761dcf9c976718f3f24c0e4630ea1867f7d2d
SHA51244c54e8bb1710bea9c35042889a18010e5426acaf311969d59f1cdcde014189c73a02dbd4f6eca962a6e308df2ad5ba839f9969ce653c35b9198d1ce3217742a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52cbb18769f56c9ce9bd24a651d4e51c5
SHA17b1c5049586acb4a0b02b031c3be9e806c8ba2ce
SHA25645a830327689f948eafe846f16086fc14c994e2c8be27b4dedc328cd8fb31c37
SHA51210d5697196a8dda5de2c30fcc07c2213158964567340aca45f062d06da70368d71aea0e38ff65ebb6c6e6c66cb8a6bdad11b9c6de39a0669484b40a926fb0f83
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50573107c2faf17d6b8e125548db6d30b
SHA1dd32fd0088337ed776e897277f9a01c893b61302
SHA25672275abfeccd74d3c4476f24e293decbdaab081b249f0e3f1966e01db0026bae
SHA5127761501c2eed167e4486500d719e48be81ab538f9463b75324376756afa14c966edf303e729f9f92d22c41fa5864f1a63636668165f449cb50ba09e807ac8814
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59b5c73f295b58fa3c158874d1a39cf2a
SHA139c404d953171fe7d8a12cf524f04606a5343f34
SHA256151b3254248f96013ca6c190b095bee55c523274371b8b6af64f0b5849a140b3
SHA512192566ab6ab1f62063bc37d846ec75efbbf57d6dd2db954131a4c3a737525cbb2cc935e81ea7dbe2ec642678b521d051065a83a22674886fb7004051c4bf9461
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53025293288ac164b215703db461c1350
SHA1acf3fdaa59c7b3e51ff0591620cfc269724f359d
SHA256a6f322df6de8068813b64043f4bf94e7edcf835263ae5db8d647f61858c2ff85
SHA512d8f942f99bacae97fa05704278b5a43ce3677dc550a4a3c8c594f8f86f970763fec0d36482c9cdca1025b773298297471eceea94642c80ff9ed722cb092381b0
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Filesize
4.2MB
MD5e26cd86799540bd4595992a421a61dea
SHA1cf52ca4b56c075fb8bf5054126e5c3db09ffdfec
SHA25642357c039270ba12fd007170fb317f954e7f1a7e683fa0e47f7af596df72da8d
SHA51243ffc44c8a02306b2303f855e96d566678dce662f61197ce783024c3670b3db4aeecc6ffd968057089c727545be025b808f4b33bf7f902bca1ec5dc3afcca23d
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec