Analysis
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max time kernel
149s -
max time network
124s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
18-05-2024 16:55
Static task
static1
Behavioral task
behavioral1
Sample
49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe
Resource
win10v2004-20240426-en
General
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Target
49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe
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Size
4.1MB
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MD5
32441a4dca0530aedda30463e4f891e4
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SHA1
c1ba27a358e438cf3ce59c84e26a661145c27808
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SHA256
49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336
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SHA512
1009cc232b70637c7631e1b9f267f65a437acc77b6da7a82d73ad02950f4d54d63b08891dd0485ed037decdd336a4c9aff98010627ccb161c2496a67e26c4228
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SSDEEP
98304:Ac7aFVXn+Lid2bryXaMbaClZg093y0sFFfdliBdPq:AX++d2b0aMbplZO0sFfSq
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/3908-2-0x0000000004860000-0x000000000514B000-memory.dmp family_glupteba behavioral2/memory/3908-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3908-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3908-54-0x0000000004860000-0x000000000514B000-memory.dmp family_glupteba behavioral2/memory/3908-51-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/2400-125-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/568-204-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/568-205-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/568-206-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/568-207-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/568-208-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/568-209-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/568-210-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/568-211-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/568-212-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/568-213-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/568-214-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/568-215-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba behavioral2/memory/568-216-0x0000000000400000-0x0000000002738000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1992 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 568 csrss.exe 2884 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3938118698-2964058152-2337880935-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\S-1-5-21-3938118698-2964058152-2337880935-1000\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 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe File created C:\Windows\rss\csrss.exe 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe -
pid Process 2496 powershell.exe 2240 powershell.exe 4120 powershell.exe 4976 powershell.exe 1392 powershell.exe 1524 powershell.exe 4920 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 1884 schtasks.exe 4616 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,-961 = "Paraguay Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs 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,-215 = "Pacific Standard Time (Mexico)" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates 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,-42 = "E. South America Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs 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,-2392 = "Aleutian Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates 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\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates 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\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\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,-651 = "AUS Central Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs 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,-51 = "Greenland Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2496 powershell.exe 2496 powershell.exe 3908 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 3908 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 2240 powershell.exe 2240 powershell.exe 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 4120 powershell.exe 4120 powershell.exe 4976 powershell.exe 4976 powershell.exe 1392 powershell.exe 1392 powershell.exe 1524 powershell.exe 1524 powershell.exe 4920 powershell.exe 4920 powershell.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 568 csrss.exe 568 csrss.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 568 csrss.exe 568 csrss.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe 2884 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 2496 powershell.exe Token: SeDebugPrivilege 3908 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Token: SeImpersonatePrivilege 3908 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe Token: SeDebugPrivilege 2240 powershell.exe Token: SeDebugPrivilege 4120 powershell.exe Token: SeDebugPrivilege 4976 powershell.exe Token: SeDebugPrivilege 1392 powershell.exe Token: SeDebugPrivilege 1524 powershell.exe Token: SeDebugPrivilege 4920 powershell.exe Token: SeSystemEnvironmentPrivilege 568 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 3908 wrote to memory of 2496 3908 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 82 PID 3908 wrote to memory of 2496 3908 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 82 PID 3908 wrote to memory of 2496 3908 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 82 PID 2400 wrote to memory of 2240 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 87 PID 2400 wrote to memory of 2240 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 87 PID 2400 wrote to memory of 2240 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 87 PID 2400 wrote to memory of 908 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 89 PID 2400 wrote to memory of 908 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 89 PID 908 wrote to memory of 1992 908 cmd.exe 91 PID 908 wrote to memory of 1992 908 cmd.exe 91 PID 2400 wrote to memory of 4120 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 92 PID 2400 wrote to memory of 4120 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 92 PID 2400 wrote to memory of 4120 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 92 PID 2400 wrote to memory of 4976 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 94 PID 2400 wrote to memory of 4976 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 94 PID 2400 wrote to memory of 4976 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 94 PID 2400 wrote to memory of 568 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 96 PID 2400 wrote to memory of 568 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 96 PID 2400 wrote to memory of 568 2400 49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe 96 PID 568 wrote to memory of 1392 568 csrss.exe 97 PID 568 wrote to memory of 1392 568 csrss.exe 97 PID 568 wrote to memory of 1392 568 csrss.exe 97 PID 568 wrote to memory of 1524 568 csrss.exe 102 PID 568 wrote to memory of 1524 568 csrss.exe 102 PID 568 wrote to memory of 1524 568 csrss.exe 102 PID 568 wrote to memory of 4920 568 csrss.exe 105 PID 568 wrote to memory of 4920 568 csrss.exe 105 PID 568 wrote to memory of 4920 568 csrss.exe 105 PID 568 wrote to memory of 2884 568 csrss.exe 107 PID 568 wrote to memory of 2884 568 csrss.exe 107 -
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\49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe"C:\Users\Admin\AppData\Local\Temp\49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3908 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2496
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C:\Users\Admin\AppData\Local\Temp\49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.exe"C:\Users\Admin\AppData\Local\Temp\49a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336.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:2400 -
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:2240
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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:908 -
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:1992
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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:4120
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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:4976
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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:568 -
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:1392
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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:1884
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4844
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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:1524
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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:4920
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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:2884
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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:4616
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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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5bc3acaf17b1b6f70286e778f87761593
SHA16adafacab62aeed41edf9c5536034b9236329d83
SHA256ca25a148632b889a5d952d55e15daa32bd13bfa56e1ab8260f12a929885333c2
SHA51225dba84e74a34048a7c4c55a7e4915be11e1913116bd37f8d28a8a4b970f7d549be6644c3da7d4bea031efb1202a6a886a50c1996e1d60a68c1ede3f192831a2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD514a5315d9ba854d4b23054fbcd860ceb
SHA1cb5ea83ee78d72466f6f5ec0de9986112167e776
SHA2568262bdebb218980b1971008a4696e65fba3121d80e55b36a8240396c804b4509
SHA51284295d98d598c827d803631304a2602c29c2d415b8dfe9227994c4c36e994afe7d424b8a2c741cf6b2b8c791077ab9d47110e3af31143fa9b8a248083a756ea4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55327a69242289dae0e7ae7119a86a82f
SHA19cf8905146b528df4397410c6aa592fd5ece7c89
SHA25633c57d08b68fb8c81aed5893c3c22d50d32961c67733dd721a1cbdf4bf5fb6ff
SHA51241c8cea5a22b177457dd9281466d4e8ac5fe1857ef2e2fe3effcdcb73415b8b338eab1bda2d6e4419bd348b9382f1ff0ea8de3f7e2cb970810a41ab626bfe60d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c2ce5d815fdcf0d58ef511adda719022
SHA162baa7540795ea59a4b4e40b0dd8cace107e3f34
SHA2568d6661c88feffb44725faf0eec0848ff7ef750b638b8cb9470ea1f835922b66d
SHA5124506b0bb482bc1bcdf21dca5039bc41f7cf3c421f2f469d16e5f6c7f7a8bc510803ef536d7029a035f810f98c33bd929dd2b498a4394299e33e79769fd82a443
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e0fe95fd81cd1b8f893e2923b151ab41
SHA1e0457ddf55a06d9254f817d415cee34de7beb043
SHA2562f50d8ef5facf9616249d7aea139cb40f166fe732667d0bdec2bece1929656aa
SHA512f75350c0518e69bbcfaeeb5316849296ddb17e98946c37a5677e8cf106dce8e7afc5bc6cb51556c92a53b639cedb36153bc98b51dadfd04fc32df62a8eec6d3a
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Filesize
4.1MB
MD532441a4dca0530aedda30463e4f891e4
SHA1c1ba27a358e438cf3ce59c84e26a661145c27808
SHA25649a99adbcef6271145e3c7629435641f595991a92c375162e0f35a70aeeeb336
SHA5121009cc232b70637c7631e1b9f267f65a437acc77b6da7a82d73ad02950f4d54d63b08891dd0485ed037decdd336a4c9aff98010627ccb161c2496a67e26c4228