Analysis
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max time kernel
150s -
max time network
150s -
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, 19:34
Static task
static1
Behavioral task
behavioral1
Sample
a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe
Resource
win10v2004-20240426-en
General
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Target
a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe
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Size
4.1MB
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MD5
1eee28bc105cbbd364cca7b2db042a8c
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SHA1
ee4370c95fdc7ac05b80bf69fdbb555c96e1b728
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SHA256
a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab
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SHA512
330230ba0c892bf6b37fd103ee323d931bd5c980f2506dfe603b3f9d5f582005d069309026534c3a5be7231806a173be2a111b38ea8189ae1298db26430489a0
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SSDEEP
98304:3jrHiscAnk4Z0f7mBZCfuP+pmwVLETOu5PKDHvrjVgO2i:Trhn/yCBZkM+pB3dzP
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/2168-2-0x0000000002EA0000-0x000000000378B000-memory.dmp family_glupteba behavioral2/memory/2168-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2168-74-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2168-76-0x0000000002EA0000-0x000000000378B000-memory.dmp family_glupteba behavioral2/memory/248-123-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/248-194-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4368-196-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4368-208-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4368-217-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4368-221-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4368-225-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4368-229-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4368-233-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4368-237-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4368-241-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4368-245-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4368-249-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4368-253-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3728 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4368 csrss.exe 3308 injector.exe 4640 windefender.exe 1096 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9d6-207.dat upx behavioral2/memory/4640-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1096-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4640-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1096-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1096-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\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 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe File created C:\Windows\rss\csrss.exe a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.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 3464 sc.exe -
pid Process 576 powershell.exe 2008 powershell.exe 3592 powershell.exe 1748 powershell.exe 1908 powershell.exe 4908 powershell.exe 1036 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 2308 schtasks.exe 5064 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\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.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,-912 = "Mauritius Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2892 = "Sudan Standard 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\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-841 = "Argentina Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs 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,-1472 = "Magadan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3052 = "Qyzylorda Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1892 = "Russia TZ 3 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-231 = "Hawaiian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1036 powershell.exe 1036 powershell.exe 2168 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 2168 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 576 powershell.exe 576 powershell.exe 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 2008 powershell.exe 2008 powershell.exe 3592 powershell.exe 3592 powershell.exe 1748 powershell.exe 1748 powershell.exe 1908 powershell.exe 1908 powershell.exe 4908 powershell.exe 4908 powershell.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 4368 csrss.exe 4368 csrss.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 4368 csrss.exe 4368 csrss.exe 3308 injector.exe 3308 injector.exe 4368 csrss.exe 4368 csrss.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe 3308 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1036 powershell.exe Token: SeDebugPrivilege 2168 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Token: SeImpersonatePrivilege 2168 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe Token: SeDebugPrivilege 576 powershell.exe Token: SeDebugPrivilege 2008 powershell.exe Token: SeDebugPrivilege 3592 powershell.exe Token: SeDebugPrivilege 1748 powershell.exe Token: SeDebugPrivilege 1908 powershell.exe Token: SeDebugPrivilege 4908 powershell.exe Token: SeSystemEnvironmentPrivilege 4368 csrss.exe Token: SeSecurityPrivilege 3464 sc.exe Token: SeSecurityPrivilege 3464 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2168 wrote to memory of 1036 2168 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 82 PID 2168 wrote to memory of 1036 2168 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 82 PID 2168 wrote to memory of 1036 2168 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 82 PID 248 wrote to memory of 576 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 87 PID 248 wrote to memory of 576 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 87 PID 248 wrote to memory of 576 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 87 PID 248 wrote to memory of 2860 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 89 PID 248 wrote to memory of 2860 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 89 PID 2860 wrote to memory of 3728 2860 cmd.exe 91 PID 2860 wrote to memory of 3728 2860 cmd.exe 91 PID 248 wrote to memory of 2008 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 92 PID 248 wrote to memory of 2008 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 92 PID 248 wrote to memory of 2008 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 92 PID 248 wrote to memory of 3592 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 94 PID 248 wrote to memory of 3592 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 94 PID 248 wrote to memory of 3592 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 94 PID 248 wrote to memory of 4368 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 96 PID 248 wrote to memory of 4368 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 96 PID 248 wrote to memory of 4368 248 a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe 96 PID 4368 wrote to memory of 1748 4368 csrss.exe 97 PID 4368 wrote to memory of 1748 4368 csrss.exe 97 PID 4368 wrote to memory of 1748 4368 csrss.exe 97 PID 4368 wrote to memory of 1908 4368 csrss.exe 102 PID 4368 wrote to memory of 1908 4368 csrss.exe 102 PID 4368 wrote to memory of 1908 4368 csrss.exe 102 PID 4368 wrote to memory of 4908 4368 csrss.exe 105 PID 4368 wrote to memory of 4908 4368 csrss.exe 105 PID 4368 wrote to memory of 4908 4368 csrss.exe 105 PID 4368 wrote to memory of 3308 4368 csrss.exe 107 PID 4368 wrote to memory of 3308 4368 csrss.exe 107 PID 4640 wrote to memory of 2872 4640 windefender.exe 113 PID 4640 wrote to memory of 2872 4640 windefender.exe 113 PID 4640 wrote to memory of 2872 4640 windefender.exe 113 PID 2872 wrote to memory of 3464 2872 cmd.exe 114 PID 2872 wrote to memory of 3464 2872 cmd.exe 114 PID 2872 wrote to memory of 3464 2872 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\a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe"C:\Users\Admin\AppData\Local\Temp\a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2168 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1036
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C:\Users\Admin\AppData\Local\Temp\a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.exe"C:\Users\Admin\AppData\Local\Temp\a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab.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:248 -
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:576
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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:2860 -
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:3728
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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:2008
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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:3592
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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:4368 -
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:1748
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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:5064
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1676
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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:1908
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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:4908
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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:3308
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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:2308
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4640 -
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:2872 -
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:3464
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1096
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
MD5e9de144c515f733ad92eb5bfc4b26b77
SHA1677063327766f796118fea615ca37bae9aabc67b
SHA256a233c121af4ba73b66a52285ecc694da0ab056169381a9a2815587f42c535c9e
SHA5127a1900775de9a4510659ac003d31ebb357f6d2e6f1253d3cf45702fe68d92d9b6f2db9e39fa19c2418ea1dc769e612c37d1f727fe4ed4f2725149603d1966778
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53cb5fce946caca094046a30626c2f7fa
SHA187259af22a164b7528264a8374e5ddbd1f50d704
SHA2562d95d2a0a3620b526143f03a5758b05c40bb3ae535e7e1fa7706aad9517e890a
SHA512a970ab0dcf1822ddb2442d7d8cc05f52a6c103f951e1c59b61958852c56ab3df2a43412c2d3e8ed36a00e1029fd2256c54b1ea80927d76c3ceeca3ce80da4bdd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d05de13c179abd1ddd44e7aca82d3c7a
SHA1f972004d196b343fa2b4fbcf86b155d25f864dae
SHA2569a352ad0e7785999b5dd9b8cefc4b607fbbf17e7a0c3b085b5e1c1234ba6b62d
SHA51255063a356d78c4837a187b348f76e3c3966f78b48713210292cac286cce5c1ac298449e82bfa1a42ddc739a75e241d9f589606cd5684069d365444198773d036
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ce7af76f6b5ee37227cff29cc64284cc
SHA1d9c57ac370096281d6ffc73c8bed486976339d81
SHA25695acdb586632e103ce72310763ae9ffd9b75a1c0d322fd145d264f5815edb16b
SHA512ff505d74a578c38f1d560c7d5e995aa3ac2f359891399c22745fd0b1e5f60999e6a9649fbc390e3a7ec0c0b6f80c55df99dfc90e6b518546af260e84b483c8fa
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57e16956e70c7e7e4747d8825d4154b02
SHA1776a0c73ea7a3274a445b64b42885ba1da7acf5e
SHA256d53d21ad2f2f822f08dfe93644b93cefc5d245ec1cafd4d6fc3000a166211363
SHA51297d80fdb5718eae26ac7d2fd5bcdc8da5d2fa65b99b01e1094dff059a4eda6b567802cb37424cb9a3f9f3de1db3a32c16ae8924b1dd7fcf16eba3be888a69c65
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Filesize
4.1MB
MD51eee28bc105cbbd364cca7b2db042a8c
SHA1ee4370c95fdc7ac05b80bf69fdbb555c96e1b728
SHA256a23c303215aaf509077321343e5de6fcdc1d1f6ba7f752e316452818899beeab
SHA512330230ba0c892bf6b37fd103ee323d931bd5c980f2506dfe603b3f9d5f582005d069309026534c3a5be7231806a173be2a111b38ea8189ae1298db26430489a0
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec