Analysis
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max time kernel
150s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
19/04/2024, 18:03
Static task
static1
Behavioral task
behavioral1
Sample
a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe
Resource
win10v2004-20240412-en
General
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Target
a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe
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Size
4.2MB
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MD5
f3bcdb5acd74e0b94d1e9f816e354483
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SHA1
8575178999958e37a666d5d48402d34fe302db2e
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SHA256
a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785
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SHA512
376852dcf3d18acc9e8362fe651d0cdd74b8c3003e3c7f5c1e523ed72f30ac2d0058367ca093245863651b0552b47fa6ed2735b1cf4c776fa315d9bacde8532b
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SSDEEP
98304:lBy5JAu+Hk0Et5Mgg8VWlfA2+5+VVv7Fm6fCN:eAu+ENnjVyYiVNw4A
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/1900-2-0x0000000004250000-0x0000000004B3B000-memory.dmp family_glupteba behavioral2/memory/1900-3-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4968-53-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1900-55-0x0000000004250000-0x0000000004B3B000-memory.dmp family_glupteba behavioral2/memory/1900-80-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4968-146-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4032-241-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4032-251-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4032-254-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4032-257-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4032-260-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4032-263-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4032-266-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4032-269-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4032-272-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4032-275-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4032-278-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4032-281-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/4032-284-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 892 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4032 csrss.exe 956 injector.exe 4692 windefender.exe 3104 windefender.exe -
resource yara_rule behavioral2/files/0x000100000002a991-244.dat upx behavioral2/memory/4692-249-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3104-253-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3104-259-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Set value (str) \REGISTRY\USER\S-1-5-21-3263309122-2820180308-3568046652-1000\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 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 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 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe File created C:\Windows\rss\csrss.exe a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.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 4188 sc.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 1532 schtasks.exe 1088 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-11 = "Azores Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-281 = "Central Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates 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\26\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-672 = "AUS Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-732 = "Fiji Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-401 = "Arabic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2632 = "Norfolk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2322 = "Sakhalin Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.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\26\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-632 = "Tokyo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\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\26\52C64B7E\@tzres.dll,-292 = "Central European Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1592 powershell.exe 1592 powershell.exe 1900 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 1900 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 2288 powershell.exe 2288 powershell.exe 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 2272 powershell.exe 2272 powershell.exe 4000 powershell.exe 4000 powershell.exe 4304 powershell.exe 4304 powershell.exe 5096 powershell.exe 5096 powershell.exe 4480 powershell.exe 4480 powershell.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 4032 csrss.exe 4032 csrss.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 4032 csrss.exe 4032 csrss.exe 956 injector.exe 956 injector.exe 4032 csrss.exe 4032 csrss.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe 956 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1592 powershell.exe Token: SeDebugPrivilege 1900 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Token: SeImpersonatePrivilege 1900 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe Token: SeDebugPrivilege 2288 powershell.exe Token: SeDebugPrivilege 2272 powershell.exe Token: SeDebugPrivilege 4000 powershell.exe Token: SeDebugPrivilege 4304 powershell.exe Token: SeDebugPrivilege 5096 powershell.exe Token: SeDebugPrivilege 4480 powershell.exe Token: SeSystemEnvironmentPrivilege 4032 csrss.exe Token: SeSecurityPrivilege 4188 sc.exe Token: SeSecurityPrivilege 4188 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1900 wrote to memory of 1592 1900 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 81 PID 1900 wrote to memory of 1592 1900 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 81 PID 1900 wrote to memory of 1592 1900 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 81 PID 4968 wrote to memory of 2288 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 87 PID 4968 wrote to memory of 2288 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 87 PID 4968 wrote to memory of 2288 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 87 PID 4968 wrote to memory of 128 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 89 PID 4968 wrote to memory of 128 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 89 PID 128 wrote to memory of 892 128 cmd.exe 91 PID 128 wrote to memory of 892 128 cmd.exe 91 PID 4968 wrote to memory of 2272 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 92 PID 4968 wrote to memory of 2272 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 92 PID 4968 wrote to memory of 2272 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 92 PID 4968 wrote to memory of 4000 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 94 PID 4968 wrote to memory of 4000 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 94 PID 4968 wrote to memory of 4000 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 94 PID 4968 wrote to memory of 4032 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 96 PID 4968 wrote to memory of 4032 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 96 PID 4968 wrote to memory of 4032 4968 a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe 96 PID 4032 wrote to memory of 4304 4032 csrss.exe 97 PID 4032 wrote to memory of 4304 4032 csrss.exe 97 PID 4032 wrote to memory of 4304 4032 csrss.exe 97 PID 4032 wrote to memory of 5096 4032 csrss.exe 102 PID 4032 wrote to memory of 5096 4032 csrss.exe 102 PID 4032 wrote to memory of 5096 4032 csrss.exe 102 PID 4032 wrote to memory of 4480 4032 csrss.exe 105 PID 4032 wrote to memory of 4480 4032 csrss.exe 105 PID 4032 wrote to memory of 4480 4032 csrss.exe 105 PID 4032 wrote to memory of 956 4032 csrss.exe 107 PID 4032 wrote to memory of 956 4032 csrss.exe 107 PID 4692 wrote to memory of 3716 4692 windefender.exe 113 PID 4692 wrote to memory of 3716 4692 windefender.exe 113 PID 4692 wrote to memory of 3716 4692 windefender.exe 113 PID 3716 wrote to memory of 4188 3716 cmd.exe 114 PID 3716 wrote to memory of 4188 3716 cmd.exe 114 PID 3716 wrote to memory of 4188 3716 cmd.exe 114 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe"C:\Users\Admin\AppData\Local\Temp\a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1900 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1592
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C:\Users\Admin\AppData\Local\Temp\a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.exe"C:\Users\Admin\AppData\Local\Temp\a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785.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:4968 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2288
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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:128 -
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:892
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2272
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4000
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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:4032 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4304
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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:1532
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4136
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5096
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4480
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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:956
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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:1088
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4692 -
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:3716 -
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:4188
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3104
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
MD57aa12b2e2493524c87e212bd342c79c8
SHA140888d030241bf6d8a1d8593b8a7ec9105aab275
SHA256cad932ca24d4a937e53f9b4ea71e49f917b8911889145a595fb2e8ca9c9dc456
SHA51253a88ce98422700d7e3d2228d9f4abfcacd10f6a7fdfe5b9e6f62f4ab8a4a7f7f02873c0c09c3996ef8c2cbd789f5bd5196b146da1e30f866881d9235ed3509b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52fefeb735fad5b369c039fc78207bd9c
SHA12979a8daff67fe85d8203e8d0f06814185c89dbe
SHA256d1522e299c4753d574fc5ba7c71d4c4f371eeb0225d3fc06009d7e08d590819d
SHA512b2f2068a275f96f054ceed2944eb797d268b2fd69adb4d2b2b77267f707c74e6f45734539a6f330b30e686617705eca0c47eee7746aef3c1fc3dd1fbc0666ef4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5780f0190fd4a8b04dbfdf4187bc0112c
SHA1f1ca625fc022d9ef516651231e5218836a39c4d1
SHA2569f0ec8de0dab0000d591bb3d818f209a6ca525e05adb3946d62136911c9dac25
SHA5127a9db07a5ed210bbc9dffcf91c59e4a29ed4ce29c886ec962a98419108ca8340b63acabbd0c2dc4bc98d733f1edabb1f20547a16696b3934fd08a1b2769765c5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5053e3894470239f1d467e941b18351ba
SHA194bfbf1ea556b488b69ba6c61d051a62ee4e4f09
SHA256b56a979781fdbb4a33afae91109d1b184a0ab0c56c81e8f298e4b6ea9275a662
SHA51267ef9f1c2c693c2008c7880fa0f7ed7eefa329d87448a5a65cdccbf3ca73c6fee5e44675c8ddce1fb47b29b2568b67d9dac1a42d0d176912cf9d4ac36f0878fc
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5141c265202d2acf27bb62ee65e6a2610
SHA1d165c1a168ac0069dd78f68b792cd698f2b2fc8a
SHA2565000d6bfcb53978233abbaa708f839d23abab61f31057c43c31ce5474a285fef
SHA512679e8bcb605543499503e5907e53d8e5f3283ea376bc3a773ef4b99550de21a6fda9b7f027014b4d280cf7500b73a01ec8f7f687bc89cc8c2bf1f37732319da6
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Filesize
4.2MB
MD5f3bcdb5acd74e0b94d1e9f816e354483
SHA18575178999958e37a666d5d48402d34fe302db2e
SHA256a9073d44989bdfab49ec6ab1cb7d9c0eca82575362e9093d6860b04b67e02785
SHA512376852dcf3d18acc9e8362fe651d0cdd74b8c3003e3c7f5c1e523ed72f30ac2d0058367ca093245863651b0552b47fa6ed2735b1cf4c776fa315d9bacde8532b
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec