Analysis
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max time kernel
150s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
17-05-2024 13:04
Static task
static1
Behavioral task
behavioral1
Sample
b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe
Resource
win10v2004-20240508-en
General
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Target
b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe
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Size
4.1MB
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MD5
f61920d557fd6487a9a7ee0b5b772b63
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SHA1
338db365ab279d1e2fbdd339183f6a92ef09196b
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SHA256
b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450
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SHA512
bdeaebb36d1aaf959c74c65f12eadf630c4bff2a477d839d6f4f0ec04d53da272efd1bccc950591881d952e130b8fcad693ea1040f656034544c0ec924827804
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SSDEEP
98304:PhzlfCz+ccJ0CpUiRHjJlGcG1klIkRd3fLKEvn:5z9CiccJ0CpfGcGG1DfLt
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/3732-2-0x0000000004DE0000-0x00000000056CB000-memory.dmp family_glupteba behavioral2/memory/3732-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3732-24-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/3732-54-0x0000000004DE0000-0x00000000056CB000-memory.dmp family_glupteba behavioral2/memory/3732-56-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3732-55-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/4940-79-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/4940-130-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1364-198-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1364-207-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1364-210-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1364-213-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1364-216-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1364-219-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1364-222-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1364-225-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1364-228-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1364-231-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2128 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 1364 csrss.exe 4744 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File 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.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe File opened for modification C:\Windows\rss b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe -
pid Process 564 powershell.exe 2312 powershell.exe 1072 powershell.exe 2700 powershell.exe 1956 powershell.exe 4996 powershell.exe 3796 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1600 schtasks.exe 480 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs 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\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs 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\Policies\Microsoft\SystemCertificates\CA 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\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates 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\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs 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,-1722 = "Libya Standard Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.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,-461 = "Afghanistan Daylight Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed 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\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates 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\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.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" b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2312 powershell.exe 2312 powershell.exe 3732 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 3732 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 1072 powershell.exe 1072 powershell.exe 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 2700 powershell.exe 2700 powershell.exe 1956 powershell.exe 1956 powershell.exe 4996 powershell.exe 4996 powershell.exe 3796 powershell.exe 3796 powershell.exe 564 powershell.exe 564 powershell.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 1364 csrss.exe 1364 csrss.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 1364 csrss.exe 1364 csrss.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 2312 powershell.exe Token: SeDebugPrivilege 3732 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Token: SeImpersonatePrivilege 3732 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe Token: SeDebugPrivilege 1072 powershell.exe Token: SeDebugPrivilege 2700 powershell.exe Token: SeDebugPrivilege 1956 powershell.exe Token: SeDebugPrivilege 4996 powershell.exe Token: SeDebugPrivilege 3796 powershell.exe Token: SeDebugPrivilege 564 powershell.exe Token: SeSystemEnvironmentPrivilege 1364 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 3732 wrote to memory of 2312 3732 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 78 PID 3732 wrote to memory of 2312 3732 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 78 PID 3732 wrote to memory of 2312 3732 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 78 PID 4940 wrote to memory of 1072 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 83 PID 4940 wrote to memory of 1072 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 83 PID 4940 wrote to memory of 1072 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 83 PID 4940 wrote to memory of 4720 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 85 PID 4940 wrote to memory of 4720 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 85 PID 4720 wrote to memory of 2128 4720 cmd.exe 87 PID 4720 wrote to memory of 2128 4720 cmd.exe 87 PID 4940 wrote to memory of 2700 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 88 PID 4940 wrote to memory of 2700 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 88 PID 4940 wrote to memory of 2700 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 88 PID 4940 wrote to memory of 1956 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 90 PID 4940 wrote to memory of 1956 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 90 PID 4940 wrote to memory of 1956 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 90 PID 4940 wrote to memory of 1364 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 92 PID 4940 wrote to memory of 1364 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 92 PID 4940 wrote to memory of 1364 4940 b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe 92 PID 1364 wrote to memory of 4996 1364 csrss.exe 93 PID 1364 wrote to memory of 4996 1364 csrss.exe 93 PID 1364 wrote to memory of 4996 1364 csrss.exe 93 PID 1364 wrote to memory of 3796 1364 csrss.exe 99 PID 1364 wrote to memory of 3796 1364 csrss.exe 99 PID 1364 wrote to memory of 3796 1364 csrss.exe 99 PID 1364 wrote to memory of 564 1364 csrss.exe 101 PID 1364 wrote to memory of 564 1364 csrss.exe 101 PID 1364 wrote to memory of 564 1364 csrss.exe 101 PID 1364 wrote to memory of 4744 1364 csrss.exe 103 PID 1364 wrote to memory of 4744 1364 csrss.exe 103 -
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\b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe"C:\Users\Admin\AppData\Local\Temp\b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3732 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2312
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C:\Users\Admin\AppData\Local\Temp\b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.exe"C:\Users\Admin\AppData\Local\Temp\b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450.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:4940 -
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:1072
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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:4720 -
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:2128
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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:2700
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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:1956
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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:1364 -
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:4996
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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:1600
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1744
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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:3796
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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:564
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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:4744
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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:480
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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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD554e73c00cc69af4de5e0738f9444af2d
SHA1b41facfee4f0972fa73318074a0daa58cb6e8cb3
SHA2562a5b20bd219e6b4010728e3c7700a4bc5c1d486e9f4bf9c4d7b08d4e5c88994d
SHA5128e5c26d9f235621f8b5d26194562a16537b65939b976e9b4430ea43c4fb081cf7fe3db983774e39df9af67b0f12c1f93f1476233eb9e1312c6d8d0da0b1e4f48
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ed24a0e16ac6660f4250fcd32aef3113
SHA117a8cce6ce58d0679be43ecba11935ef75f0996c
SHA25663de5cf7a0164e3fb032f6760eaca8f9b798bcc98ad569a439d94c4309b0b137
SHA51245a3ffd477205363816f56c1565839b2b8353ad294f56f0f2059d28f6e30eed86f8986d7ef2cf3eb5cd69a3035dbaad8ca9b6b1642c19928d4055df2695d9356
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD594cf40ba9d88ff64ead6e0495673c6f5
SHA195763d5df30505607c7978a2ffc96d11b1fd0109
SHA256cf4337e7eb0f7330f0eccc9ad420ce942fe009f2d77e1d89faac831da1475c2e
SHA512cfbe19c19d81e0ece9b5bf4fc756691710e8403eacb17b6b41553d7407e260da18bb10c79de3eb5efb397249430f956d4518575b714f812e5980d5997c0425c2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b18a3b9aa2337975d63ffabe64dc4cd6
SHA1e4d6aaa063767483ced8ea615144510ac349c41d
SHA2562a0b006b291625c31b6adaf1646d7da884330cff5053fdfc1a94722e64959b45
SHA512e2297010d8ba0f364118627aff6a18af7c9e8a3a94cff06d627757d7d9b7da1fbd998044538b3c63b07d4050e81da2eead085546466110d93c9648db9dea4cc6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57f9ed84fcac64cf29bbb45672dd50fe3
SHA1e2820f2798f20f86753f5edf17889656d85fb6a8
SHA256321cd36b0e288c565da63e0982bc6ca9d5666ddc5f2baff1566b2c3434cc83c2
SHA512906ed6dc91d9210aae26afd88b59b3939f8f14ad789994587ffc7398fd99bbfd1c9c65da710b53062783e3067e8db00dd1f4d8102318fab19efc06366d9b2ed7
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Filesize
4.1MB
MD5f61920d557fd6487a9a7ee0b5b772b63
SHA1338db365ab279d1e2fbdd339183f6a92ef09196b
SHA256b2b572a9f0b0d9a7e1ee8afb6cfbbe8e9814a74dba2c8d81fea35a28ebe97450
SHA512bdeaebb36d1aaf959c74c65f12eadf630c4bff2a477d839d6f4f0ec04d53da272efd1bccc950591881d952e130b8fcad693ea1040f656034544c0ec924827804