Analysis
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max time kernel
150s -
max time network
141s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
18-05-2024 11:31
Static task
static1
Behavioral task
behavioral1
Sample
a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe
Resource
win10v2004-20240508-en
General
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Target
a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe
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Size
4.1MB
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MD5
14858ab25d16ceab589e312ed7719756
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SHA1
bf21e2e69cf9cc5bfc00a3e097cdfa8c38f9fe25
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SHA256
a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14
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SHA512
938e3c4ca8511cab559097d7b8293ec4f8f009a40be383e6ad8fa28997633ebf1e0f10cda3877ec9f2a4ce770e3164737a60eb6483a8ca4da15f64c25d7c960e
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SSDEEP
98304:4Z9bi3QNEOtUId2petU9sYIhWVMAA4+Hk:R303UIApyYIhWVME5
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/3044-2-0x0000000004C30000-0x000000000551B000-memory.dmp family_glupteba behavioral2/memory/3044-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3044-88-0x0000000004C30000-0x000000000551B000-memory.dmp family_glupteba behavioral2/memory/3044-86-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3044-146-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1148-145-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/1608-201-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/1608-213-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/1608-217-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/1608-221-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/1608-225-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/1608-229-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/1608-233-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/1608-237-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/1608-241-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/1608-245-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/1608-249-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/1608-253-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/1608-257-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 668 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1608 csrss.exe 2572 injector.exe 3356 windefender.exe 5048 windefender.exe -
resource yara_rule behavioral2/files/0x001a00000002ab25-205.dat upx behavioral2/memory/3356-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5048-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3356-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5048-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5048-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/5048-235-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description 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\"" a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.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.
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 created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe File created C:\Windows\rss\csrss.exe a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.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.
pid Process 668 sc.exe -
pid Process 4904 powershell.exe 2804 powershell.exe 4512 powershell.exe 840 powershell.exe 4740 powershell.exe 2920 powershell.exe 3500 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 2044 schtasks.exe 5036 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\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-682 = "E. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-911 = "Mauritius Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.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" a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2341 = "Haiti Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.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\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-232 = "Hawaiian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.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,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time" a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1721 = "Libya Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-931 = "Coordinated Universal Time" windefender.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\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed 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\@tzres.dll,-2592 = "Tocantins Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2162 = "Altai Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-111 = "Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2321 = "Sakhalin Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-632 = "Tokyo Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4740 powershell.exe 4740 powershell.exe 3044 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 3044 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 2920 powershell.exe 2920 powershell.exe 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 3500 powershell.exe 3500 powershell.exe 4904 powershell.exe 4904 powershell.exe 2804 powershell.exe 2804 powershell.exe 4512 powershell.exe 4512 powershell.exe 840 powershell.exe 840 powershell.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 1608 csrss.exe 1608 csrss.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 1608 csrss.exe 1608 csrss.exe 2572 injector.exe 2572 injector.exe 1608 csrss.exe 1608 csrss.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe 2572 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4740 powershell.exe Token: SeDebugPrivilege 3044 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe Token: SeImpersonatePrivilege 3044 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe Token: SeDebugPrivilege 2920 powershell.exe Token: SeDebugPrivilege 3500 powershell.exe Token: SeDebugPrivilege 4904 powershell.exe Token: SeDebugPrivilege 2804 powershell.exe Token: SeDebugPrivilege 4512 powershell.exe Token: SeDebugPrivilege 840 powershell.exe Token: SeSystemEnvironmentPrivilege 1608 csrss.exe Token: SeSecurityPrivilege 668 sc.exe Token: SeSecurityPrivilege 668 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3044 wrote to memory of 4740 3044 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 80 PID 3044 wrote to memory of 4740 3044 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 80 PID 3044 wrote to memory of 4740 3044 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 80 PID 1148 wrote to memory of 2920 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 86 PID 1148 wrote to memory of 2920 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 86 PID 1148 wrote to memory of 2920 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 86 PID 1148 wrote to memory of 2656 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 88 PID 1148 wrote to memory of 2656 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 88 PID 2656 wrote to memory of 668 2656 cmd.exe 90 PID 2656 wrote to memory of 668 2656 cmd.exe 90 PID 1148 wrote to memory of 3500 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 91 PID 1148 wrote to memory of 3500 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 91 PID 1148 wrote to memory of 3500 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 91 PID 1148 wrote to memory of 4904 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 93 PID 1148 wrote to memory of 4904 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 93 PID 1148 wrote to memory of 4904 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 93 PID 1148 wrote to memory of 1608 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 95 PID 1148 wrote to memory of 1608 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 95 PID 1148 wrote to memory of 1608 1148 a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe 95 PID 1608 wrote to memory of 2804 1608 csrss.exe 96 PID 1608 wrote to memory of 2804 1608 csrss.exe 96 PID 1608 wrote to memory of 2804 1608 csrss.exe 96 PID 1608 wrote to memory of 4512 1608 csrss.exe 102 PID 1608 wrote to memory of 4512 1608 csrss.exe 102 PID 1608 wrote to memory of 4512 1608 csrss.exe 102 PID 1608 wrote to memory of 840 1608 csrss.exe 104 PID 1608 wrote to memory of 840 1608 csrss.exe 104 PID 1608 wrote to memory of 840 1608 csrss.exe 104 PID 1608 wrote to memory of 2572 1608 csrss.exe 106 PID 1608 wrote to memory of 2572 1608 csrss.exe 106 PID 3356 wrote to memory of 1312 3356 windefender.exe 112 PID 3356 wrote to memory of 1312 3356 windefender.exe 112 PID 3356 wrote to memory of 1312 3356 windefender.exe 112 PID 1312 wrote to memory of 668 1312 cmd.exe 113 PID 1312 wrote to memory of 668 1312 cmd.exe 113 PID 1312 wrote to memory of 668 1312 cmd.exe 113 -
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\a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe"C:\Users\Admin\AppData\Local\Temp\a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3044 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4740
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C:\Users\Admin\AppData\Local\Temp\a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.exe"C:\Users\Admin\AppData\Local\Temp\a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14.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:1148 -
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:2920
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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:2656 -
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:668
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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:3500
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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:4904
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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:1608 -
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:2804
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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:2044
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4560
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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:4512
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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:840
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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:2572
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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:5036
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3356 -
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:1312 -
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:668
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:5048
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
MD59ba00c3e189c30f76277b35d77126da6
SHA1eb99b4821527aa9fe8a14b09bbd2e6f1260b1265
SHA2566a57b93bc61cec053028a16ec4568a8dce0602a352bc81a8e686bb365bd7f1f0
SHA512c199cac4afe5ddfc0eecbc06657205a34b63d9af9a5316722c7b7a431efd4bf9779a542a6367a90cedd8559ff357b9870c2229b96b1eb4d6d73d12a38deaf0cc
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD555b0efd579298175d0fd332783393ea1
SHA18ce6f37cf2e373dd532b3bce06fa99ea2397a861
SHA256f0abb9d5d5cd804659500fea9f41831919acb0e0e77cfbcdef4ce0e392cd97f7
SHA512f49fa14ace03ee1a79eacd0933187b4986d210e6d75105d5cf649ba8abf44fa453d7c870119576c9628761261bbdd3e965749f79ff9baab774c87dc33ba74a65
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5732ed87b28f033e3b636481280a23348
SHA1440f6c0deacfd06d9c021f3bffd36694ca157ebd
SHA256c68234a3a30644b2f0b7854984e40ed10219feec273e85540c419fa28b43b03d
SHA5123518125be6fb0b82ff0f293fe488bb874a926c6b81306d1f69451a7a587fb08e69198c5c0f9b0417945e753bcfb3bf9d67511dac5eb9349c5ddc0df0c985c2e6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a0d79fffe2d55c8184cf1d15c2a3f2e7
SHA11225f690256e31279bd9f7b50206fab4832a89ea
SHA256dba0b537ee8478426ffbd3634556ccea2536ccaa8df678f07cb2a2e986fea3ce
SHA51212abf208355c9a1242884b37c5d07d649b3c2012222e0350c8bc682a6c8f73b330cf5b8043ab3e26ac18975aefb1f6ada15b4403fccabae6352de599802a9f00
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD573ed928924e22fe06529d833e9c9bfd2
SHA12eebf660a45547746ece38eadf3257cdbcf668c3
SHA2561658d585e33ab0526caad957e9d1edd3b48f7752bf010f2d2c82bec0bb067b17
SHA512439f563be644ac46b3727723d54703e85e9a564b5c82f7b2e0aec8dbcca3cd6599151d66ebf9881a39446ccffa4f1a14b46974b6ca81891156ac420f4076abe2
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Filesize
4.1MB
MD514858ab25d16ceab589e312ed7719756
SHA1bf21e2e69cf9cc5bfc00a3e097cdfa8c38f9fe25
SHA256a533e73d1acc498e8866d07fb8e3d154be8dd1c29552d13ba09c668e70413e14
SHA512938e3c4ca8511cab559097d7b8293ec4f8f009a40be383e6ad8fa28997633ebf1e0f10cda3877ec9f2a4ce770e3164737a60eb6483a8ca4da15f64c25d7c960e
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec