Analysis
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max time kernel
149s -
max time network
146s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
20-04-2024 16:10
Static task
static1
Behavioral task
behavioral1
Sample
ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe
Resource
win10v2004-20240412-en
General
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Target
ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe
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Size
4.2MB
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MD5
2bc5c6cc81f6690de6a255b60d979260
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SHA1
0b95f0c7ea5fd7d183c90fdacf64789b57ae7d42
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SHA256
ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54
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SHA512
95dfcfce860c4ae8c72ad3df3434c61ff07943ff9f9c66ea669168e9cc90ac238e97e3ededda5eec5b0507a9cfaa9b52241c49287d8a3b7c6a444ff449b030d9
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SSDEEP
49152:Ar1oHj0tlV0f9s8MWzX04BUpcYbKwdRAyQZQ93cNVdRbmMzimZc5ZnjMAqqwRi88:ABcwtA9b44emOBqNRUORBLE4AjzX
Malware Config
Signatures
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Glupteba payload 20 IoCs
Processes:
resource yara_rule behavioral2/memory/3232-2-0x0000000004140000-0x0000000004A2B000-memory.dmp family_glupteba behavioral2/memory/3232-3-0x0000000000400000-0x0000000001DF8000-memory.dmp family_glupteba behavioral2/memory/4904-53-0x00000000040A0000-0x000000000498B000-memory.dmp family_glupteba behavioral2/memory/4904-54-0x0000000000400000-0x0000000001DF8000-memory.dmp family_glupteba behavioral2/memory/3232-79-0x0000000000400000-0x0000000001DF8000-memory.dmp family_glupteba behavioral2/memory/4904-128-0x0000000000400000-0x0000000001DF8000-memory.dmp family_glupteba behavioral2/memory/4904-146-0x0000000000400000-0x0000000001DF8000-memory.dmp family_glupteba behavioral2/memory/2760-241-0x0000000000400000-0x0000000001DF8000-memory.dmp family_glupteba behavioral2/memory/2760-250-0x0000000000400000-0x0000000001DF8000-memory.dmp family_glupteba behavioral2/memory/2760-253-0x0000000000400000-0x0000000001DF8000-memory.dmp family_glupteba behavioral2/memory/2760-256-0x0000000000400000-0x0000000001DF8000-memory.dmp family_glupteba behavioral2/memory/2760-259-0x0000000000400000-0x0000000001DF8000-memory.dmp family_glupteba behavioral2/memory/2760-262-0x0000000000400000-0x0000000001DF8000-memory.dmp family_glupteba behavioral2/memory/2760-265-0x0000000000400000-0x0000000001DF8000-memory.dmp family_glupteba behavioral2/memory/2760-268-0x0000000000400000-0x0000000001DF8000-memory.dmp family_glupteba behavioral2/memory/2760-271-0x0000000000400000-0x0000000001DF8000-memory.dmp family_glupteba behavioral2/memory/2760-274-0x0000000000400000-0x0000000001DF8000-memory.dmp family_glupteba behavioral2/memory/2760-277-0x0000000000400000-0x0000000001DF8000-memory.dmp family_glupteba behavioral2/memory/2760-280-0x0000000000400000-0x0000000001DF8000-memory.dmp family_glupteba behavioral2/memory/2760-283-0x0000000000400000-0x0000000001DF8000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 4292 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid process 2760 csrss.exe 2328 injector.exe 3484 windefender.exe 2400 windefender.exe -
Processes:
resource yara_rule C:\Windows\windefender.exe upx behavioral2/memory/3484-248-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2400-251-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2400-257-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2400-266-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-801765966-3955847401-2235691403-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Set value (str) \REGISTRY\USER\S-1-5-21-801765966-3955847401-2235691403-1000\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.
Processes:
csrss.exedescription ioc process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription 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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
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.
Processes:
ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exedescription ioc process File opened (read-only) \??\VBoxMiniRdrDN ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe -
Drops file in Windows directory 4 IoCs
Processes:
ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.execsrss.exedescription ioc process File opened for modification C:\Windows\rss ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe File created C:\Windows\rss\csrss.exe ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.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.
Processes:
sc.exepid process 2388 sc.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 2008 schtasks.exe 1972 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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\26\52C64B7E\@tzres.dll,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-161 = "Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1862 = "Russia TZ 6 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1971 = "Belarus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs 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\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2452 = "Saint Pierre Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-772 = "Montevideo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-872 = "Pakistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2572 = "Turks and Caicos Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-401 = "Arabic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-12 = "Azores Standard Time" windefender.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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.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\26\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exeac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exepowershell.exeac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid process 4116 powershell.exe 4116 powershell.exe 3232 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe 3232 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe 2848 powershell.exe 2848 powershell.exe 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe 1976 powershell.exe 1976 powershell.exe 4516 powershell.exe 4516 powershell.exe 4636 powershell.exe 4636 powershell.exe 1384 powershell.exe 1384 powershell.exe 3720 powershell.exe 3720 powershell.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2760 csrss.exe 2760 csrss.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2760 csrss.exe 2760 csrss.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2760 csrss.exe 2760 csrss.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe 2328 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exeac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid process Token: SeDebugPrivilege 4116 powershell.exe Token: SeDebugPrivilege 3232 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Token: SeImpersonatePrivilege 3232 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe Token: SeDebugPrivilege 2848 powershell.exe Token: SeDebugPrivilege 1976 powershell.exe Token: SeDebugPrivilege 4516 powershell.exe Token: SeDebugPrivilege 4636 powershell.exe Token: SeDebugPrivilege 1384 powershell.exe Token: SeDebugPrivilege 3720 powershell.exe Token: SeSystemEnvironmentPrivilege 2760 csrss.exe Token: SeSecurityPrivilege 2388 sc.exe Token: SeSecurityPrivilege 2388 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exeac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.execmd.execsrss.exewindefender.execmd.exedescription pid process target process PID 3232 wrote to memory of 4116 3232 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe powershell.exe PID 3232 wrote to memory of 4116 3232 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe powershell.exe PID 3232 wrote to memory of 4116 3232 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe powershell.exe PID 4904 wrote to memory of 2848 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe powershell.exe PID 4904 wrote to memory of 2848 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe powershell.exe PID 4904 wrote to memory of 2848 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe powershell.exe PID 4904 wrote to memory of 2004 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe cmd.exe PID 4904 wrote to memory of 2004 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe cmd.exe PID 2004 wrote to memory of 4292 2004 cmd.exe netsh.exe PID 2004 wrote to memory of 4292 2004 cmd.exe netsh.exe PID 4904 wrote to memory of 1976 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe powershell.exe PID 4904 wrote to memory of 1976 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe powershell.exe PID 4904 wrote to memory of 1976 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe powershell.exe PID 4904 wrote to memory of 4516 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe powershell.exe PID 4904 wrote to memory of 4516 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe powershell.exe PID 4904 wrote to memory of 4516 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe powershell.exe PID 4904 wrote to memory of 2760 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe csrss.exe PID 4904 wrote to memory of 2760 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe csrss.exe PID 4904 wrote to memory of 2760 4904 ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe csrss.exe PID 2760 wrote to memory of 4636 2760 csrss.exe powershell.exe PID 2760 wrote to memory of 4636 2760 csrss.exe powershell.exe PID 2760 wrote to memory of 4636 2760 csrss.exe powershell.exe PID 2760 wrote to memory of 1384 2760 csrss.exe powershell.exe PID 2760 wrote to memory of 1384 2760 csrss.exe powershell.exe PID 2760 wrote to memory of 1384 2760 csrss.exe powershell.exe PID 2760 wrote to memory of 3720 2760 csrss.exe powershell.exe PID 2760 wrote to memory of 3720 2760 csrss.exe powershell.exe PID 2760 wrote to memory of 3720 2760 csrss.exe powershell.exe PID 2760 wrote to memory of 2328 2760 csrss.exe injector.exe PID 2760 wrote to memory of 2328 2760 csrss.exe injector.exe PID 3484 wrote to memory of 3808 3484 windefender.exe cmd.exe PID 3484 wrote to memory of 3808 3484 windefender.exe cmd.exe PID 3484 wrote to memory of 3808 3484 windefender.exe cmd.exe PID 3808 wrote to memory of 2388 3808 cmd.exe sc.exe PID 3808 wrote to memory of 2388 3808 cmd.exe sc.exe PID 3808 wrote to memory of 2388 3808 cmd.exe sc.exe -
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\ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe"C:\Users\Admin\AppData\Local\Temp\ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3232 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4116
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C:\Users\Admin\AppData\Local\Temp\ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.exe"C:\Users\Admin\AppData\Local\Temp\ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54.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:4904 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2848
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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:2004 -
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:4292
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1976
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4516
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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:2760 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4636
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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:2008
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4056
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1384
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3720
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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:2328
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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:1972
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3484 -
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:3808 -
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:2388
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2400
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
MD5958ced4ed6d835872377cc8864d99125
SHA1e5c58204e3ac4da5b6b0aa433222bcc73be56f35
SHA256664b4eef687addb4442e7bbb8b1ded643d0f2737a49c6461843883ef8cd8d6a1
SHA5126a8cc657efefafc55c555dba2f42c3ceceed68d6bc2979cdaec7e937e5d211326b690a2984aaee90fa8fac1d0e484defc4ac972ded23961b10279425d486d3c7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5009690b4d1aa27b3b06aea1e27eca225
SHA137ae8d54d8fa0e49b0ca899b5b323c64055dcac3
SHA256426b374dde97e6425e05192d62fa87f9bcbe15ed3ae8921748cffcdb030c674a
SHA5126ef5eb04ed4ddcbfb71043fa9ff7ee2c0ed8296ce69c63e72862afb196b3657043a35b58c6a11542093b16a90214e08b7076db9dbd1cadeb1cd42b0ab506dec4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5df03c4d4e02f34a2d2ddcc5520879b6b
SHA1a67b327ab5c287dc75dfb74d6e94c9e723d2f9ff
SHA25691af23bd60d640d31cdabad6e15cf8e205e648e05330fae515fa19cb6bea84f6
SHA512ea0e0275eba5128d63e089303e06a747d7be8b45a0655f5f2ac95bd6ae96ddc1ade7c6841cf80e5ca24a21cb6349dafdaa36cfc22fbde261e13fa40ef2ad6398
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD580efe49cd5f91c39b3f1ba5f1017476c
SHA12264af78811f4352118ea8ce0ef80e4c7987fd5e
SHA256d33304a7795a7a1fffdece1ca317973d2c263c5fa2edb02c0a17aac02f65f6bc
SHA5124eb3bc53341db2bc6e170e607187fa2897fe2b36baa0f085669111b0db4f4bb3959dc198cff4cce7e5831e0b9c9a8baa1d94fa08875d041bfef413c6fdeef468
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5994f178b9a8be8d02a67ae44b7c8bc03
SHA1e58f1ec8a935130ba3f83a831e3e036360f056f9
SHA25639141c1279308b7144704661440b832eb3a8a68a7e99e60e765f362de07c5b10
SHA5124aff97aa11bc7a1c1e0c2493870e5ca69bb021344952e97af75ec51a9f69b25bc49eac2f52a7024f981858318451a3a27b6b6e14e2c8804341cdcabb6a3deafd
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Filesize
4.2MB
MD52bc5c6cc81f6690de6a255b60d979260
SHA10b95f0c7ea5fd7d183c90fdacf64789b57ae7d42
SHA256ac81aadfb7f50cf59362d2074aa48e37cf27a67082c3cae9b55e5a4ba0280b54
SHA51295dfcfce860c4ae8c72ad3df3434c61ff07943ff9f9c66ea669168e9cc90ac238e97e3ededda5eec5b0507a9cfaa9b52241c49287d8a3b7c6a444ff449b030d9
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec