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Analysis
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max time kernel
150s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
29/04/2024, 04:47
Static task
static1
Behavioral task
behavioral1
Sample
8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe
Resource
win10v2004-20240419-en
General
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Target
8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe
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Size
4.1MB
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MD5
fb61c5853827c9f839a9fd09e1d2cd46
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SHA1
cb0e2be50bcc5ab8af5ce66b437aec5b27a4f732
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SHA256
8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c
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SHA512
c5c3d51a4cffbd23667061a804d7776a46c838b14960c291d77488d6779577a210d521c8ac94f487174df942b4cf8a606dd022981a64ca5a1be65d5714b4571d
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SSDEEP
98304:4mt2HMNzbl5vG6exEEj3um3jyNJdQ91UKr1D7kBRa7W:4mt2Hsbl5vMradQvtZvra
Malware Config
Signatures
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Glupteba payload 16 IoCs
resource yara_rule behavioral1/memory/2608-2-0x0000000005000000-0x00000000058EB000-memory.dmp family_glupteba behavioral1/memory/2608-3-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral1/memory/2608-28-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral1/memory/2608-57-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral1/memory/2608-59-0x0000000005000000-0x00000000058EB000-memory.dmp family_glupteba behavioral1/memory/3880-138-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral1/memory/1340-165-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral1/memory/1340-217-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral1/memory/1340-229-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral1/memory/1340-232-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral1/memory/1340-235-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral1/memory/1340-238-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral1/memory/1340-241-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral1/memory/1340-244-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral1/memory/1340-247-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba behavioral1/memory/1340-250-0x0000000000400000-0x0000000002ED3000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4716 netsh.exe -
Executes dropped EXE 3 IoCs
pid Process 1340 csrss.exe 4588 injector.exe 4392 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (str) \REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe File created C:\Windows\rss\csrss.exe 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1200 schtasks.exe 4044 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.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\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs 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\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.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\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\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\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.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" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates 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" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time" 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2892 powershell.exe 2892 powershell.exe 2608 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 2608 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 740 powershell.exe 740 powershell.exe 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 1272 powershell.exe 1272 powershell.exe 4408 powershell.exe 4408 powershell.exe 4764 powershell.exe 4764 powershell.exe 1108 powershell.exe 1108 powershell.exe 3544 powershell.exe 3544 powershell.exe 4588 injector.exe 4588 injector.exe 4392 injector.exe 4392 injector.exe 4588 injector.exe 4588 injector.exe 4392 injector.exe 4392 injector.exe 1340 csrss.exe 1340 csrss.exe 4588 injector.exe 4588 injector.exe 4392 injector.exe 4392 injector.exe 4588 injector.exe 4588 injector.exe 4392 injector.exe 4392 injector.exe 4588 injector.exe 4588 injector.exe 4392 injector.exe 4392 injector.exe 1340 csrss.exe 1340 csrss.exe 4588 injector.exe 4588 injector.exe 4392 injector.exe 4392 injector.exe 4588 injector.exe 4588 injector.exe 4392 injector.exe 4392 injector.exe 4588 injector.exe 4588 injector.exe 4392 injector.exe 4392 injector.exe 4588 injector.exe 4588 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 2892 powershell.exe Token: SeDebugPrivilege 2608 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Token: SeImpersonatePrivilege 2608 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe Token: SeDebugPrivilege 740 powershell.exe Token: SeDebugPrivilege 1272 powershell.exe Token: SeDebugPrivilege 4408 powershell.exe Token: SeDebugPrivilege 4764 powershell.exe Token: SeDebugPrivilege 1108 powershell.exe Token: SeDebugPrivilege 3544 powershell.exe Token: SeSystemEnvironmentPrivilege 1340 csrss.exe -
Suspicious use of WriteProcessMemory 32 IoCs
description pid Process procid_target PID 2608 wrote to memory of 2892 2608 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 88 PID 2608 wrote to memory of 2892 2608 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 88 PID 2608 wrote to memory of 2892 2608 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 88 PID 3880 wrote to memory of 740 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 93 PID 3880 wrote to memory of 740 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 93 PID 3880 wrote to memory of 740 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 93 PID 3880 wrote to memory of 4840 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 95 PID 3880 wrote to memory of 4840 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 95 PID 4840 wrote to memory of 4716 4840 cmd.exe 97 PID 4840 wrote to memory of 4716 4840 cmd.exe 97 PID 3880 wrote to memory of 1272 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 99 PID 3880 wrote to memory of 1272 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 99 PID 3880 wrote to memory of 1272 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 99 PID 3880 wrote to memory of 4408 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 101 PID 3880 wrote to memory of 4408 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 101 PID 3880 wrote to memory of 4408 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 101 PID 3880 wrote to memory of 1340 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 105 PID 3880 wrote to memory of 1340 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 105 PID 3880 wrote to memory of 1340 3880 8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe 105 PID 1340 wrote to memory of 4764 1340 csrss.exe 108 PID 1340 wrote to memory of 4764 1340 csrss.exe 108 PID 1340 wrote to memory of 4764 1340 csrss.exe 108 PID 1340 wrote to memory of 1108 1340 csrss.exe 113 PID 1340 wrote to memory of 1108 1340 csrss.exe 113 PID 1340 wrote to memory of 1108 1340 csrss.exe 113 PID 1340 wrote to memory of 3544 1340 csrss.exe 117 PID 1340 wrote to memory of 3544 1340 csrss.exe 117 PID 1340 wrote to memory of 3544 1340 csrss.exe 117 PID 1340 wrote to memory of 4588 1340 csrss.exe 119 PID 1340 wrote to memory of 4588 1340 csrss.exe 119 PID 1340 wrote to memory of 4392 1340 csrss.exe 121 PID 1340 wrote to memory of 4392 1340 csrss.exe 121 -
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\8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe"C:\Users\Admin\AppData\Local\Temp\8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2608 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2892
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C:\Users\Admin\AppData\Local\Temp\8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.exe"C:\Users\Admin\AppData\Local\Temp\8cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c.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:3880 -
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:740
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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:4840 -
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:4716
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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:1272
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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:4408
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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.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1340 -
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:4764
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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:4044
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2568
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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:1108
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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:3544
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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:4588
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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:4392
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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:1200
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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
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD579688cc26e7b75a2108668ed479c0c98
SHA1599e2b15000ae96b2f95ba703583cdc8abd7ec8a
SHA2561a02b3db839f51123cb1c662282568fc3b5fc23402b399932cab2889736469d8
SHA51241a19cbd81f45183c1adb5e983eb6619a06ddc2abdd6bc64925daa81207eb2c7bb8401b80025530c70b7533103be915af180e54427bafaa8d2c9e4d7a960be48
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5741b712d19f1ca9001a0fcd24e2997b5
SHA14e5f4a60314569667669bd0394d053eab07559d9
SHA2562774b5e505e27b6bb7fa607a795f8285332c7449e603211c59eb2d53129a2dcf
SHA512c3cf63fbb24c5f22ed9dd05aaced501371ec81465fd7ef34078f85f08bf35895c7d3600d92f04926c2c719a42cdd7d4e827a039443bfe84464fc7b4eb4527041
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD578bf16f1edafa51f41c808158672c16f
SHA1e881af16e928f1c2d23169f9ef1481a59dc3f688
SHA256a5931582f375cd944f3188988d208d39d98cfbaf3053ed56ca5fabe96be3e8b3
SHA51202bdb5c005361e17ce2d5719502583446febe92e30d1bda6c9c7853c5460fdc84c57697ddd732f18d8e55b18b82a58fed18ae35b9e450968907bb7b2648014d7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD576aab1281ab579a552833df347cc035d
SHA1e3d652e66c0c22d8059b150f8489cbe1580c77b6
SHA256a45ca662b3be072020175c97c4ebed2f182b6e685f6e6d96652098097974535f
SHA5124472ba5edc585a201df33805bfe9601a9e438cd263cce5f9985248c9f395b60369bdd8d937cb51b6680db9af54d6edf034c0f90d6cc8158da1ee386d5268564c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5dc96c4dd38db663e6811b5ea58292f59
SHA114e04190b9fbcd8fa053427125e7faa5cc7a2f58
SHA256d0eaa7293dd56436ab7b160b8df9670756ae2ea969ccba6fb366515de2a92374
SHA512ab9d21e1fd404d0d32c030d4d31f71c5847de0201fbae05df6d05936047d5cb9c21224867a17a0eb4b0650a4001d53e288191e0d47ace0856778a2231bc0ae86
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Filesize
4.1MB
MD5fb61c5853827c9f839a9fd09e1d2cd46
SHA1cb0e2be50bcc5ab8af5ce66b437aec5b27a4f732
SHA2568cb303dd91774b53ed766942f3e11f0c684da38bbeae23662fe0ddb1c85daf3c
SHA512c5c3d51a4cffbd23667061a804d7776a46c838b14960c291d77488d6779577a210d521c8ac94f487174df942b4cf8a606dd022981a64ca5a1be65d5714b4571d