Analysis
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max time kernel
150s -
max time network
130s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 11:35
Static task
static1
Behavioral task
behavioral1
Sample
8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe
Resource
win10v2004-20240426-en
General
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Target
8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe
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Size
4.1MB
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MD5
8792fffdee93c4e1663c7c6a5bfa9ef6
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SHA1
d6ba1c4d9e73da8020b891292cd20bd270ed2ff1
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SHA256
8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f
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SHA512
d0e15f7a4f88c4cb220ac387546beb170d34fffba3dbc7a5a671291d923ab514820721fcaebf8abe853049d6c9188532c4ef77f422cdf3ba7f4ae94ca7f4fefe
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SSDEEP
98304:Ok/C6baF9NNXYvR+SQPyohxfWe3/GY9pAEj6Q:On6bazjovoyoHfX3/GYHX
Malware Config
Signatures
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Glupteba payload 20 IoCs
Processes:
resource yara_rule behavioral2/memory/952-2-0x00000000046A0000-0x0000000004F8B000-memory.dmp family_glupteba behavioral2/memory/952-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/952-53-0x00000000046A0000-0x0000000004F8B000-memory.dmp family_glupteba behavioral2/memory/952-51-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/952-54-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3252-121-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3252-126-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3332-205-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3332-215-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3332-216-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3332-218-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3332-220-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3332-223-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3332-224-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3332-226-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3332-228-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3332-231-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3332-232-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3332-234-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/3332-236-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 2264 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 3332 csrss.exe 1516 injector.exe 1412 windefender.exe 5024 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x001a00000002ab58-208.dat upx behavioral2/memory/1412-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5024-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1412-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5024-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5024-221-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5024-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\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 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.
Processes:
8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe -
Drops file in Windows directory 4 IoCs
Processes:
8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe File created C:\Windows\rss\csrss.exe 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.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 5076 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 1676 powershell.exe 4748 powershell.exe 2752 powershell.exe 2284 powershell.exe 2368 powershell.exe 1132 powershell.exe 4588 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 5060 schtasks.exe 4344 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-372 = "Jerusalem Standard Time" windefender.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\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-571 = "China Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-51 = "Greenland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2941 = "Sao Tome Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.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\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed 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,-572 = "China Standard Time" windefender.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\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs 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\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exepowershell.exe8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4588 powershell.exe 4588 powershell.exe 952 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 952 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 1676 powershell.exe 1676 powershell.exe 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 4748 powershell.exe 4748 powershell.exe 2752 powershell.exe 2752 powershell.exe 2284 powershell.exe 2284 powershell.exe 2368 powershell.exe 2368 powershell.exe 1132 powershell.exe 1132 powershell.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 3332 csrss.exe 3332 csrss.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 3332 csrss.exe 3332 csrss.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 3332 csrss.exe 3332 csrss.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe 1516 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4588 powershell.exe Token: SeDebugPrivilege 952 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Token: SeImpersonatePrivilege 952 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe Token: SeDebugPrivilege 1676 powershell.exe Token: SeDebugPrivilege 4748 powershell.exe Token: SeDebugPrivilege 2752 powershell.exe Token: SeDebugPrivilege 2284 powershell.exe Token: SeDebugPrivilege 2368 powershell.exe Token: SeDebugPrivilege 1132 powershell.exe Token: SeSystemEnvironmentPrivilege 3332 csrss.exe Token: SeSecurityPrivilege 5076 sc.exe Token: SeSecurityPrivilege 5076 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 952 wrote to memory of 4588 952 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 81 PID 952 wrote to memory of 4588 952 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 81 PID 952 wrote to memory of 4588 952 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 81 PID 3252 wrote to memory of 1676 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 87 PID 3252 wrote to memory of 1676 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 87 PID 3252 wrote to memory of 1676 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 87 PID 3252 wrote to memory of 1412 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 89 PID 3252 wrote to memory of 1412 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 89 PID 1412 wrote to memory of 2264 1412 cmd.exe 91 PID 1412 wrote to memory of 2264 1412 cmd.exe 91 PID 3252 wrote to memory of 4748 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 92 PID 3252 wrote to memory of 4748 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 92 PID 3252 wrote to memory of 4748 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 92 PID 3252 wrote to memory of 2752 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 94 PID 3252 wrote to memory of 2752 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 94 PID 3252 wrote to memory of 2752 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 94 PID 3252 wrote to memory of 3332 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 96 PID 3252 wrote to memory of 3332 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 96 PID 3252 wrote to memory of 3332 3252 8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe 96 PID 3332 wrote to memory of 2284 3332 csrss.exe 97 PID 3332 wrote to memory of 2284 3332 csrss.exe 97 PID 3332 wrote to memory of 2284 3332 csrss.exe 97 PID 3332 wrote to memory of 2368 3332 csrss.exe 102 PID 3332 wrote to memory of 2368 3332 csrss.exe 102 PID 3332 wrote to memory of 2368 3332 csrss.exe 102 PID 3332 wrote to memory of 1132 3332 csrss.exe 105 PID 3332 wrote to memory of 1132 3332 csrss.exe 105 PID 3332 wrote to memory of 1132 3332 csrss.exe 105 PID 3332 wrote to memory of 1516 3332 csrss.exe 107 PID 3332 wrote to memory of 1516 3332 csrss.exe 107 PID 1412 wrote to memory of 4568 1412 windefender.exe 113 PID 1412 wrote to memory of 4568 1412 windefender.exe 113 PID 1412 wrote to memory of 4568 1412 windefender.exe 113 PID 4568 wrote to memory of 5076 4568 cmd.exe 114 PID 4568 wrote to memory of 5076 4568 cmd.exe 114 PID 4568 wrote to memory of 5076 4568 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\8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe"C:\Users\Admin\AppData\Local\Temp\8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:952 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4588
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C:\Users\Admin\AppData\Local\Temp\8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.exe"C:\Users\Admin\AppData\Local\Temp\8409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f.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:3252 -
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:1676
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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:1412 -
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:2264
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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:4748
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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:2752
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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:3332 -
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:2284
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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:5060
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1776
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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:2368
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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:1132
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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:1516
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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:4344
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1412 -
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:4568 -
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:5076
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:5024
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52fe0ae134365f39956d31351307b346d
SHA1d63df2e5b41766ba06b8d5780956622c61fce901
SHA25694e1cdc997dd365fc360a54411ace18b900f6b3c20c571d281af86334c643cfb
SHA512e912549614a56907bcf8604c96f3f907baf4f7aaac6c8f111ff5431f97f71c12a5f435b9f435425f05bab41255b134ac64dd9f1673d4160e77fab22de1ecf6eb
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD542674f285b170a1295c103edc5699121
SHA111f85824eff50c1eabbe596c89e5603971555979
SHA2564b310d34d9bedc42be2219aef0f335ce9c957b435c49c98635cc25c14c99065d
SHA512e748a07cd1cb85eef4b799bdde27afd629cc959a39bbee0f6b5fa33b21b133af63b20d5544b131d3c98d0c58bb51d41f0057918c66bd34edaffa92c4e2394a6c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5206ff758cc6855babfe6e163fe3f1909
SHA1c371630096dc62eeb16c3a06437bc3daf1362e01
SHA2565b60a47d41bbb829d56fa2f778fd8353bcdd8bb91aed503c22bc1a489adb40c2
SHA512eb83585186d798778b980eff6b26649cb28a516a54fe65b741f90968037841180f496c8dbd899d9af3270aef4b8ea1bdb16ebee56afdb80cb5a2fac514008077
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bf2f59f3774e7eac508b3da7661ee57e
SHA168bb6dc16959818040defb84c92e81f3348bc463
SHA256fe2de3aa09c125f5ddd242b3c09ef7471f6ba3293566fcf35ba6994d8bfa4c9c
SHA5120e813f41353c225b2d9e6d3479ce9a266834f6f61bd6804428283860e72f7c9ae84c7c82ba42b6d40c99138e8027ebdff398ef577921ddbc3bc7f14cb04f9b49
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD530b69f9b0f95674ce1de3a8b63e4a551
SHA17a0a5c05a02eecb7e48a014e30a5d704c1ba0029
SHA256eea323f26060b4523e82a590cba6dd1e8a7a7e820578b8ab1a4be275f309228a
SHA51202dc2a37c89723043a25325cef17c250017f7728f25c38253c5f67869449fcd84c3652c2f77f9f144a286261053fd8db39177e6bf13295ef364275bdbb0b5991
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Filesize
4.1MB
MD58792fffdee93c4e1663c7c6a5bfa9ef6
SHA1d6ba1c4d9e73da8020b891292cd20bd270ed2ff1
SHA2568409c2b0bb04ac92de1a1dab769d8eb0ba90026ed3036afb9bec59c52527f78f
SHA512d0e15f7a4f88c4cb220ac387546beb170d34fffba3dbc7a5a671291d923ab514820721fcaebf8abe853049d6c9188532c4ef77f422cdf3ba7f4ae94ca7f4fefe
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec