Analysis
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max time kernel
150s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 16:38
Static task
static1
Behavioral task
behavioral1
Sample
bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe
Resource
win10v2004-20240426-en
General
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Target
bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe
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Size
4.1MB
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MD5
488e2811276852ce75fe12a83f5dc1d7
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SHA1
e5869aae3438f5c311fd83556130bab1ae91c1f5
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SHA256
bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478
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SHA512
a41db33a337420f2c54ded95da6ee8086bb2ebc0feb74e8f639706fb3dde86632126e5f2f2e37e257598aef5a73f461f721d59552f12056d843e3b232be8761d
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SSDEEP
98304:JvHfbigA34ifkpJZQU0TgaIfW6UkFHwAhDtgwFW+1s:JvHfb2IifudqhIuUHwAjW+C
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/1360-2-0x0000000004940000-0x000000000522B000-memory.dmp family_glupteba behavioral2/memory/1360-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1360-77-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1360-98-0x0000000004940000-0x000000000522B000-memory.dmp family_glupteba behavioral2/memory/1360-121-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3980-120-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/3980-200-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1836-201-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1836-213-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1836-216-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1836-220-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1836-225-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1836-229-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1836-233-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1836-236-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1836-241-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1836-245-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1836-249-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/1836-252-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 2256 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 1836 csrss.exe 2164 injector.exe 2344 windefender.exe 1016 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002a9e0-205.dat upx behavioral2/memory/2344-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1016-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2344-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1016-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1016-224-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.execsrss.exedescription 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\"" bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.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.
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 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 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:
bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe -
Drops file in Windows directory 4 IoCs
Processes:
bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe File created C:\Windows\rss\csrss.exe bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.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 2172 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 244 powershell.exe 3808 powershell.exe 4844 powershell.exe 1532 powershell.exe 1020 powershell.exe 1212 powershell.exe 2036 powershell.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 4984 schtasks.exe 4440 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
windefender.exebbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process 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,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs 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\2a\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.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,-682 = "E. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.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" bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2572 = "Turks and Caicos Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1042 = "Ulaanbaatar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2141 = "Transbaikal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1502 = "Turkey Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1862 = "Russia TZ 6 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2632 = "Norfolk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.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" bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs 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,-661 = "Cen. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight 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,-141 = "Canada Central Daylight Time" bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1501 = "Turkey Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exebbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exepowershell.exebbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 3808 powershell.exe 3808 powershell.exe 1360 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 1360 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 4844 powershell.exe 4844 powershell.exe 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 1532 powershell.exe 1532 powershell.exe 1020 powershell.exe 1020 powershell.exe 1212 powershell.exe 1212 powershell.exe 2036 powershell.exe 2036 powershell.exe 244 powershell.exe 244 powershell.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 1836 csrss.exe 1836 csrss.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 1836 csrss.exe 1836 csrss.exe 2164 injector.exe 2164 injector.exe 1836 csrss.exe 1836 csrss.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe 2164 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exebbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 3808 powershell.exe Token: SeDebugPrivilege 1360 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe Token: SeImpersonatePrivilege 1360 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe Token: SeDebugPrivilege 4844 powershell.exe Token: SeDebugPrivilege 1532 powershell.exe Token: SeDebugPrivilege 1020 powershell.exe Token: SeDebugPrivilege 1212 powershell.exe Token: SeDebugPrivilege 2036 powershell.exe Token: SeDebugPrivilege 244 powershell.exe Token: SeSystemEnvironmentPrivilege 1836 csrss.exe Token: SeSecurityPrivilege 2172 sc.exe Token: SeSecurityPrivilege 2172 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exebbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 1360 wrote to memory of 3808 1360 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 78 PID 1360 wrote to memory of 3808 1360 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 78 PID 1360 wrote to memory of 3808 1360 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 78 PID 3980 wrote to memory of 4844 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 83 PID 3980 wrote to memory of 4844 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 83 PID 3980 wrote to memory of 4844 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 83 PID 3980 wrote to memory of 2360 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 85 PID 3980 wrote to memory of 2360 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 85 PID 2360 wrote to memory of 2256 2360 cmd.exe 87 PID 2360 wrote to memory of 2256 2360 cmd.exe 87 PID 3980 wrote to memory of 1532 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 88 PID 3980 wrote to memory of 1532 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 88 PID 3980 wrote to memory of 1532 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 88 PID 3980 wrote to memory of 1020 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 90 PID 3980 wrote to memory of 1020 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 90 PID 3980 wrote to memory of 1020 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 90 PID 3980 wrote to memory of 1836 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 92 PID 3980 wrote to memory of 1836 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 92 PID 3980 wrote to memory of 1836 3980 bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe 92 PID 1836 wrote to memory of 1212 1836 csrss.exe 93 PID 1836 wrote to memory of 1212 1836 csrss.exe 93 PID 1836 wrote to memory of 1212 1836 csrss.exe 93 PID 1836 wrote to memory of 2036 1836 csrss.exe 98 PID 1836 wrote to memory of 2036 1836 csrss.exe 98 PID 1836 wrote to memory of 2036 1836 csrss.exe 98 PID 1836 wrote to memory of 244 1836 csrss.exe 101 PID 1836 wrote to memory of 244 1836 csrss.exe 101 PID 1836 wrote to memory of 244 1836 csrss.exe 101 PID 1836 wrote to memory of 2164 1836 csrss.exe 103 PID 1836 wrote to memory of 2164 1836 csrss.exe 103 PID 2344 wrote to memory of 1484 2344 windefender.exe 109 PID 2344 wrote to memory of 1484 2344 windefender.exe 109 PID 2344 wrote to memory of 1484 2344 windefender.exe 109 PID 1484 wrote to memory of 2172 1484 cmd.exe 110 PID 1484 wrote to memory of 2172 1484 cmd.exe 110 PID 1484 wrote to memory of 2172 1484 cmd.exe 110 -
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\bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe"C:\Users\Admin\AppData\Local\Temp\bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1360 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3808
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C:\Users\Admin\AppData\Local\Temp\bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.exe"C:\Users\Admin\AppData\Local\Temp\bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478.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:3980 -
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:4844
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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:2360 -
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:2256
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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:1532
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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:1020
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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:1836 -
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:1212
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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:4984
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4864
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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:2036
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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:244
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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:2164
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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:4440
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2344 -
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:1484 -
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:2172
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1016
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
MD51954e56beb8fbeb37e418183937d7980
SHA14523806b06871cab56b041323b68f3bf19c15013
SHA256b9742ab49fde6c06566f627d180f99b06c06e8adf0bfd5f507cd2452d68964fd
SHA5125e72a4bea6e5f71664e52261f2102dca90aff1df54ce4b00b763de30d1c24e20d298899b7602764e5235143e895e527def692de8fe63b44937ac46d9f4ec64ce
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53f9c6b8995b9f4fc00d8baa5efd33d8d
SHA13b20f8f1e8435df8b24da9c125c446189b8f7932
SHA25678a81841ca83eabcec1d58dda8d9d8594854c26324f9c242b5d493fb8d77f351
SHA512f05b5594cffeef859c844b5986b764e0f67ac7c1e49590e7fe24546db785da2baaae880981b4dfa8af6c34659aacd013bb872526a311f5b7be779e5a0fcd3d12
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cafc45e7889e262b76f7630960977d34
SHA18dc3d86a51390cf5068c4f2a0bb67b9e0009468b
SHA2561edbc02c656f094e9545b1cdaaa51455be38a125c03df64ccf2a6600a5c153e6
SHA5128eaa88b7bb8ddfb2ed4db9604d281200dd160d70f6ce022cb81ef5491b43832b2c855c2b4e73fa4c8c95640866da371e467527ff26bf801d3d26ff5549dd897a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5587ae3857ac0ee304a9c77dc68b446ae
SHA185f8f605e4349e1ba2e3529e622232c7e0a72725
SHA25617011a429720813701cd7bd943d3df132f412c97e6e44b647f4f06bf9d1684c5
SHA512a869eaec2578c08325835eecd677adcecda48d164b79f40b99f50076396a7658a3c0d85c6828182ffc4ffad04d1a5a9b1c43425ef91d7057aa17a1680adf1efe
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f79a25372d061401f240dab42a76268e
SHA1dfbea958e4bdf309a0f1a6f289f13d57cb180e64
SHA25685b90e2c0eed4c5171a92d048cf8267565764f62fd32eb10116319b288589822
SHA51212840892ffd9ac3fefec66cba7097ab2b8271c2e89df89b5e329c6c7249d77e2243e11584384c8c4de8798073f2eb53da470de29e37ba5fd7c15485fc245e910
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Filesize
4.1MB
MD5488e2811276852ce75fe12a83f5dc1d7
SHA1e5869aae3438f5c311fd83556130bab1ae91c1f5
SHA256bbfda674191aa9003e12b351a0e023484439c4424953dea5660950870c8e6478
SHA512a41db33a337420f2c54ded95da6ee8086bb2ebc0feb74e8f639706fb3dde86632126e5f2f2e37e257598aef5a73f461f721d59552f12056d843e3b232be8761d
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec