Analysis
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max time kernel
149s -
max time network
148s -
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, 18:05
Static task
static1
Behavioral task
behavioral1
Sample
1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe
Resource
win10v2004-20240412-en
General
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Target
1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe
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Size
4.2MB
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MD5
6c45b6ce0b321f0e602f2a1fd39d715e
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SHA1
48aaa7ffe9d700ba9021f1b2ca24de6b8421dad0
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SHA256
1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158
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SHA512
1ea7891202c46b686c11067dfe714fd9b97203f0a3c9dc30b25af04c3e4533b9f3c92e9053ff52626ff110ce62bb1bf10409385b88c9bad99c83916f09aaad90
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SSDEEP
98304:VBy5JAu+Hk0Et5Mgg8VWlfA2+5+VVv7Fm6fCz:OAu+ENnjVyYiVNw4S
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/416-2-0x0000000004160000-0x0000000004A4B000-memory.dmp family_glupteba behavioral2/memory/416-3-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2500-53-0x0000000003F40000-0x000000000482B000-memory.dmp family_glupteba behavioral2/memory/2500-54-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/416-70-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/2500-192-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1484-243-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1484-254-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1484-258-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1484-263-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1484-266-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1484-270-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1484-274-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1484-278-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1484-282-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1484-286-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1484-290-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1484-294-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba behavioral2/memory/1484-298-0x0000000000400000-0x0000000001DFD000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4896 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1484 csrss.exe 748 injector.exe 252 windefender.exe 3804 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9e2-247.dat upx behavioral2/memory/252-251-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3804-256-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3804-264-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Set value (str) \REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\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 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 -
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 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe File created C:\Windows\rss\csrss.exe 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.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 3388 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 1960 schtasks.exe 1540 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\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1022 = "Bangladesh Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3052 = "Qyzylorda Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time" 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2161 = "Altai Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-911 = "Mauritius Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-691 = "Tasmania Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-172 = "Central Standard Time (Mexico)" 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" 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2941 = "Sao Tome Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time" 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs 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\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates 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,-3051 = "Qyzylorda Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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\26\52C64B7E\@tzres.dll,-982 = "Kamchatka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-365 = "Middle East Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-232 = "Hawaiian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time" 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1944 powershell.exe 1944 powershell.exe 416 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 416 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 4876 powershell.exe 4876 powershell.exe 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 3432 powershell.exe 3432 powershell.exe 2892 powershell.exe 2892 powershell.exe 3260 powershell.exe 3260 powershell.exe 3284 powershell.exe 3284 powershell.exe 2008 powershell.exe 2008 powershell.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe 1484 csrss.exe 1484 csrss.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe 1484 csrss.exe 1484 csrss.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe 1484 csrss.exe 1484 csrss.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe 748 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1944 powershell.exe Token: SeDebugPrivilege 416 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Token: SeImpersonatePrivilege 416 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe Token: SeDebugPrivilege 4876 powershell.exe Token: SeDebugPrivilege 3432 powershell.exe Token: SeDebugPrivilege 2892 powershell.exe Token: SeDebugPrivilege 3260 powershell.exe Token: SeDebugPrivilege 3284 powershell.exe Token: SeDebugPrivilege 2008 powershell.exe Token: SeSystemEnvironmentPrivilege 1484 csrss.exe Token: SeSecurityPrivilege 3388 sc.exe Token: SeSecurityPrivilege 3388 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 416 wrote to memory of 1944 416 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 78 PID 416 wrote to memory of 1944 416 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 78 PID 416 wrote to memory of 1944 416 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 78 PID 2500 wrote to memory of 4876 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 83 PID 2500 wrote to memory of 4876 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 83 PID 2500 wrote to memory of 4876 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 83 PID 2500 wrote to memory of 2452 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 85 PID 2500 wrote to memory of 2452 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 85 PID 2452 wrote to memory of 4896 2452 cmd.exe 87 PID 2452 wrote to memory of 4896 2452 cmd.exe 87 PID 2500 wrote to memory of 3432 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 88 PID 2500 wrote to memory of 3432 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 88 PID 2500 wrote to memory of 3432 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 88 PID 2500 wrote to memory of 2892 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 90 PID 2500 wrote to memory of 2892 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 90 PID 2500 wrote to memory of 2892 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 90 PID 2500 wrote to memory of 1484 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 92 PID 2500 wrote to memory of 1484 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 92 PID 2500 wrote to memory of 1484 2500 1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe 92 PID 1484 wrote to memory of 3260 1484 csrss.exe 93 PID 1484 wrote to memory of 3260 1484 csrss.exe 93 PID 1484 wrote to memory of 3260 1484 csrss.exe 93 PID 1484 wrote to memory of 3284 1484 csrss.exe 98 PID 1484 wrote to memory of 3284 1484 csrss.exe 98 PID 1484 wrote to memory of 3284 1484 csrss.exe 98 PID 1484 wrote to memory of 2008 1484 csrss.exe 101 PID 1484 wrote to memory of 2008 1484 csrss.exe 101 PID 1484 wrote to memory of 2008 1484 csrss.exe 101 PID 1484 wrote to memory of 748 1484 csrss.exe 103 PID 1484 wrote to memory of 748 1484 csrss.exe 103 PID 252 wrote to memory of 1752 252 windefender.exe 109 PID 252 wrote to memory of 1752 252 windefender.exe 109 PID 252 wrote to memory of 1752 252 windefender.exe 109 PID 1752 wrote to memory of 3388 1752 cmd.exe 110 PID 1752 wrote to memory of 3388 1752 cmd.exe 110 PID 1752 wrote to memory of 3388 1752 cmd.exe 110 -
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\1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe"C:\Users\Admin\AppData\Local\Temp\1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:416 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1944
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C:\Users\Admin\AppData\Local\Temp\1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.exe"C:\Users\Admin\AppData\Local\Temp\1791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158.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:2500 -
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:4876
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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:2452 -
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:4896
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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:3432
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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:2892
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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:1484 -
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:3260
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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:1960
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1372
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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:3284
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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:2008
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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:748
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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:1540
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:252 -
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:1752 -
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:3388
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3804
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
MD52ea7f908a1652cedc51f7317c381e8fb
SHA18fb77753ec0fa71a09c22f4f99990ac2d29e8a59
SHA2563819a6706c5388f0893310aecbde0bc01ef29252fd889942c6e4ccdd384990d6
SHA512694777abff4189562ff6ec0bddaa50a18ad6263e503d96ee2c75d801453940b25cfd75406f1af5ea51656f2e795bd2f1c7df991a6b2645a9a67bc6d4da6f7d13
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD501b4d40ae3b30d693882a9ef1b9de0f0
SHA1c0cfd52b47dd2a3f3170893f2aca338ba310b8cc
SHA256d4cfa01da68dda629d79becb82224a5f339dfecf5ffe7cfe7d6064c0d51df57e
SHA51243875a73aaab0131ca6f38bb50158cf95771ad7b3364a7ff4392ed0443a0342bac5162754febbf101f542e978e44b88ec9fdab9ca36d0a2cc923dd8936912d21
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c4d9b83b17eaecee9afa1e5dacbf7301
SHA1f5eb29fc5c7cca45e842759ba2ea829e4a39c877
SHA256081ba5ed35ee415b7ef950cc34654453ade9ebbbcccb1e1938924988779b2c01
SHA5128d1fb60561f4203a8295c3ab3a3bd170205f3759590b3e50a5c117a8c2173003bd966ca3a9e9e0a903fbab1105955a1f965dd1467e739f7221247993f6264790
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56f301c8ecd32c427ca3324e9a63dff05
SHA1774aeb4f4a982a94eff0fdab155743fc240c1252
SHA256e5c48f0b99eb1cbd13e903f63a52bf4357b0ad68fdce6a7ad94cfb3c9d039bd8
SHA512df3fdf99f065cb7897ca4d474b49493626f6f46d08b3665b5df7aff828ef3d37e98bd6490e48a441f95d4c458a43363a96aa125eee262e79c299c71ec5e34fca
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a21048bdec91f44aaeabcb7c3512e7d9
SHA1538a73df0b498974f4005d07f7f1e758a7813c5c
SHA256eee5f6d880e9734d5558df8d34f593e3cac60ca9e0cb3f7206505505cc44624e
SHA512d672348b0aed7e4c4ebdc002ae46cc50568be7f32fcc6c0f1121157fb15e70ddf8383f3085f651f8acb1bcd58b14bbcc8eaec4d7621ee4136a3e3afeb20e92d8
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Filesize
4.2MB
MD56c45b6ce0b321f0e602f2a1fd39d715e
SHA148aaa7ffe9d700ba9021f1b2ca24de6b8421dad0
SHA2561791ed941e4f0e8a06cc5310b058c2a5364a0fe0d961f13d7d4d600c84d27158
SHA5121ea7891202c46b686c11067dfe714fd9b97203f0a3c9dc30b25af04c3e4533b9f3c92e9053ff52626ff110ce62bb1bf10409385b88c9bad99c83916f09aaad90
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec