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Analysis
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max time kernel
149s -
max time network
130s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
16/05/2024, 09:53
Static task
static1
Behavioral task
behavioral1
Sample
4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe
Resource
win10v2004-20240426-en
General
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Target
4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe
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Size
4.1MB
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MD5
4f190ad743b62026f93246a0fd077bc7
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SHA1
75df2c920194dc463f31d24b6b7604661488028a
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SHA256
4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba
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SHA512
db6be7250a2732c54b1b35138f72c86ea47b1aff2cefb865c11fad1f88370aa54163410edc27cd1f8d78decf181f325c43f23d2ab8fb15642e65a8689f141620
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SSDEEP
98304:VH49zrfgobu9aDMWAg4dPDb/NQHvakIF/A8L3rqLZk5t2qZ3qL2LAZ5a:8r7OagDbOPW/F2k5tRZaLrY
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/876-2-0x0000000002E50000-0x000000000373B000-memory.dmp family_glupteba behavioral2/memory/876-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/876-75-0x0000000002E50000-0x000000000373B000-memory.dmp family_glupteba behavioral2/memory/876-74-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2456-124-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/420-195-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/420-212-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/420-214-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/420-217-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/420-219-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/420-222-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/420-227-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/420-229-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/420-231-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/420-236-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/420-239-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/420-241-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/420-243-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 5040 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 420 csrss.exe 2924 injector.exe 1752 windefender.exe 4268 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa36-204.dat upx behavioral2/memory/1752-205-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4268-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1752-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4268-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4268-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\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 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 -
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 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe File created C:\Windows\rss\csrss.exe 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.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 2792 sc.exe -
pid Process 1720 powershell.exe 836 powershell.exe 4808 powershell.exe 1920 powershell.exe 4752 powershell.exe 2392 powershell.exe 536 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 4508 schtasks.exe 948 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs 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\2a\52C64B7E\@tzres.dll,-352 = "FLE Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-12 = "Azores Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-11 = "Azores Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2341 = "Haiti Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2631 = "Norfolk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2491 = "Aus Central W. Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time" windefender.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,-365 = "Middle East Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-302 = "Romance Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard 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" 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.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,-152 = "Central America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-161 = "Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.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,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-732 = "Fiji Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.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\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1720 powershell.exe 1720 powershell.exe 876 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 876 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 836 powershell.exe 836 powershell.exe 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 4808 powershell.exe 4808 powershell.exe 1920 powershell.exe 1920 powershell.exe 4752 powershell.exe 4752 powershell.exe 2392 powershell.exe 2392 powershell.exe 536 powershell.exe 536 powershell.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 420 csrss.exe 420 csrss.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 420 csrss.exe 420 csrss.exe 2924 injector.exe 2924 injector.exe 420 csrss.exe 420 csrss.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe 2924 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1720 powershell.exe Token: SeDebugPrivilege 876 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe Token: SeImpersonatePrivilege 876 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe Token: SeDebugPrivilege 836 powershell.exe Token: SeDebugPrivilege 4808 powershell.exe Token: SeDebugPrivilege 1920 powershell.exe Token: SeDebugPrivilege 4752 powershell.exe Token: SeDebugPrivilege 2392 powershell.exe Token: SeDebugPrivilege 536 powershell.exe Token: SeSystemEnvironmentPrivilege 420 csrss.exe Token: SeSecurityPrivilege 2792 sc.exe Token: SeSecurityPrivilege 2792 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 876 wrote to memory of 1720 876 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 82 PID 876 wrote to memory of 1720 876 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 82 PID 876 wrote to memory of 1720 876 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 82 PID 2456 wrote to memory of 836 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 87 PID 2456 wrote to memory of 836 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 87 PID 2456 wrote to memory of 836 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 87 PID 2456 wrote to memory of 5024 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 89 PID 2456 wrote to memory of 5024 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 89 PID 5024 wrote to memory of 5040 5024 cmd.exe 91 PID 5024 wrote to memory of 5040 5024 cmd.exe 91 PID 2456 wrote to memory of 4808 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 92 PID 2456 wrote to memory of 4808 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 92 PID 2456 wrote to memory of 4808 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 92 PID 2456 wrote to memory of 1920 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 94 PID 2456 wrote to memory of 1920 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 94 PID 2456 wrote to memory of 1920 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 94 PID 2456 wrote to memory of 420 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 96 PID 2456 wrote to memory of 420 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 96 PID 2456 wrote to memory of 420 2456 4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe 96 PID 420 wrote to memory of 4752 420 csrss.exe 97 PID 420 wrote to memory of 4752 420 csrss.exe 97 PID 420 wrote to memory of 4752 420 csrss.exe 97 PID 420 wrote to memory of 2392 420 csrss.exe 103 PID 420 wrote to memory of 2392 420 csrss.exe 103 PID 420 wrote to memory of 2392 420 csrss.exe 103 PID 420 wrote to memory of 536 420 csrss.exe 105 PID 420 wrote to memory of 536 420 csrss.exe 105 PID 420 wrote to memory of 536 420 csrss.exe 105 PID 420 wrote to memory of 2924 420 csrss.exe 107 PID 420 wrote to memory of 2924 420 csrss.exe 107 PID 1752 wrote to memory of 3472 1752 windefender.exe 113 PID 1752 wrote to memory of 3472 1752 windefender.exe 113 PID 1752 wrote to memory of 3472 1752 windefender.exe 113 PID 3472 wrote to memory of 2792 3472 cmd.exe 114 PID 3472 wrote to memory of 2792 3472 cmd.exe 114 PID 3472 wrote to memory of 2792 3472 cmd.exe 114 -
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\4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe"C:\Users\Admin\AppData\Local\Temp\4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:876 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1720
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C:\Users\Admin\AppData\Local\Temp\4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.exe"C:\Users\Admin\AppData\Local\Temp\4bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba.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:2456 -
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:836
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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:5024 -
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:5040
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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:4808
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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:1920
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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:420 -
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:4752
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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:948
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:776
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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:2392
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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:536
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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:2924
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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:4508
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1752 -
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:3472 -
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:2792
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4268
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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD506c5f8dc067b59f57b79f0519b800b6d
SHA1d64fde555ad50cc59c628a9bfe7d734475f96025
SHA25643de36dcce3a34ec56ca91f25219a45ca2952caaf441e7f14d84db8cd00bde82
SHA512398a0b34d8d4f223342dbe12155dd0a69c1a4256c624e67460e94895bd7817d3d72e057c9b94fad4a3473f2fe10ffe809478d25632b884dedee4f33588850522
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD517d68efe61c7815d35771919e52b1cf7
SHA1bb5bbc171d21e2cc2e4161e4f64aa649ea52c720
SHA25660de77c6f4780b89cbb87dc0434615d094bc8c2079cef3c2cfff5db4d098a91e
SHA5126945d329630bf17ba909309ea0a119677d07e1e37be3df423a4a5ab66461691fc3fbd355d92b4218d9236a2109edf71961d3ff86463e6099d055048b332d5a7d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b11fe83444c5f01570b9d4da6dcaccb2
SHA1087dff71843fdffd9e59fc54365c428e99c55be8
SHA2563e2e47f226b6f0359428491ba77e5a7f2fcf47796f21cf588f6e4bb2658c6789
SHA512cf81cc701aaa25f0fe2895e531f7970db2d5b5f2827a1ffe04a7a2a5b25f416adbaef2024c5afedd7f49d465f3a89e72a797412da692e77987b18ae729d2fa98
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD501130a15015817329affb3d2b3458684
SHA174416f00604ab7cab618b9c9668ec85fcba2112d
SHA256cf654a529bedc70750d622a8ac647a243517ca4df422a17021a0eeacea71f95f
SHA5122fc45703e360bfa0668696e1ddb10c8ccde93797b68f079a3c6af9cb51bcf20b007dd036cd4065456acb6a9170f54baf5a890bc7de634ec10d2fdff03b8f3bb5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56c74fc1aa9d6f565f92016337e1a2c48
SHA14586c6758f9b81cc26b74e0c98036354b84795e9
SHA2560aac27456a5ee36414eabcbecee99cb26a165735ae03cc34ff54f3f20ecc1c5f
SHA51256aaecb512b30f1d7a462e46c723c3564070a2789f091924ea2d7b9372611c695eb497fda8151494c0af1ea5c2808617858a4465efe91e1e4e64a7652f1a35cf
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Filesize
4.1MB
MD54f190ad743b62026f93246a0fd077bc7
SHA175df2c920194dc463f31d24b6b7604661488028a
SHA2564bf6453497ae708469692891f30e9d3ebca6b13068e741e9a782ae41ce15a9ba
SHA512db6be7250a2732c54b1b35138f72c86ea47b1aff2cefb865c11fad1f88370aa54163410edc27cd1f8d78decf181f325c43f23d2ab8fb15642e65a8689f141620
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec