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Analysis
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max time kernel
134s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
19/05/2024, 01:41
Static task
static1
Behavioral task
behavioral1
Sample
811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe
Resource
win10v2004-20240426-en
General
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Target
811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe
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Size
4.1MB
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MD5
e28c736b12b9ffec924ee1ce8d2f3874
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SHA1
d35c058e813ad02bd2b9950b3c7500d8847320c0
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SHA256
811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9
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SHA512
52970ae631da7a457c0d9a78cdb7783570dddb2f78bd060a68b777a89e803bfd1958b1e7cd64d0c12e4a58abbd716abc8a710499c96eee04d9ee2e1a2803f8a8
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SSDEEP
98304:SQGLdTw13YmTlGi/xMFRAVNS6wnhY59m5e0z8345l:SLpT0YNaxn5wu5s59Y4
Malware Config
Signatures
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Glupteba payload 15 IoCs
resource yara_rule behavioral1/memory/1008-2-0x0000000004A80000-0x000000000536B000-memory.dmp family_glupteba behavioral1/memory/1008-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1008-57-0x0000000004A80000-0x000000000536B000-memory.dmp family_glupteba behavioral1/memory/1008-54-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral1/memory/1008-56-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3340-135-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral1/memory/3528-220-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral1/memory/3528-221-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral1/memory/3528-222-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral1/memory/3528-223-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral1/memory/3528-224-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral1/memory/3528-225-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral1/memory/3528-226-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral1/memory/3528-227-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral1/memory/3528-228-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 5072 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 3528 csrss.exe 4280 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\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 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe File created C:\Windows\rss\csrss.exe 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe -
pid Process 4920 powershell.exe 3920 powershell.exe 1432 powershell.exe 4020 powershell.exe 696 powershell.exe 3192 powershell.exe 3900 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 4172 schtasks.exe 5028 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs 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,-442 = "Arabian Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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,-341 = "Egypt Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\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\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3900 powershell.exe 3900 powershell.exe 1008 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 1008 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 4920 powershell.exe 4920 powershell.exe 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 3920 powershell.exe 3920 powershell.exe 1432 powershell.exe 1432 powershell.exe 4020 powershell.exe 4020 powershell.exe 696 powershell.exe 696 powershell.exe 3192 powershell.exe 3192 powershell.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 3528 csrss.exe 3528 csrss.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 3528 csrss.exe 3528 csrss.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe 4280 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 3900 powershell.exe Token: SeDebugPrivilege 1008 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Token: SeImpersonatePrivilege 1008 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe Token: SeDebugPrivilege 4920 powershell.exe Token: SeDebugPrivilege 3920 powershell.exe Token: SeDebugPrivilege 1432 powershell.exe Token: SeDebugPrivilege 4020 powershell.exe Token: SeDebugPrivilege 696 powershell.exe Token: SeDebugPrivilege 3192 powershell.exe Token: SeSystemEnvironmentPrivilege 3528 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 1008 wrote to memory of 3900 1008 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 108 PID 1008 wrote to memory of 3900 1008 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 108 PID 1008 wrote to memory of 3900 1008 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 108 PID 3340 wrote to memory of 4920 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 95 PID 3340 wrote to memory of 4920 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 95 PID 3340 wrote to memory of 4920 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 95 PID 3340 wrote to memory of 1524 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 97 PID 3340 wrote to memory of 1524 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 97 PID 1524 wrote to memory of 5072 1524 cmd.exe 99 PID 1524 wrote to memory of 5072 1524 cmd.exe 99 PID 3340 wrote to memory of 3920 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 102 PID 3340 wrote to memory of 3920 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 102 PID 3340 wrote to memory of 3920 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 102 PID 3340 wrote to memory of 1432 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 120 PID 3340 wrote to memory of 1432 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 120 PID 3340 wrote to memory of 1432 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 120 PID 3340 wrote to memory of 3528 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 106 PID 3340 wrote to memory of 3528 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 106 PID 3340 wrote to memory of 3528 3340 811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe 106 PID 3528 wrote to memory of 4020 3528 csrss.exe 107 PID 3528 wrote to memory of 4020 3528 csrss.exe 107 PID 3528 wrote to memory of 4020 3528 csrss.exe 107 PID 3528 wrote to memory of 696 3528 csrss.exe 113 PID 3528 wrote to memory of 696 3528 csrss.exe 113 PID 3528 wrote to memory of 696 3528 csrss.exe 113 PID 3528 wrote to memory of 3192 3528 csrss.exe 115 PID 3528 wrote to memory of 3192 3528 csrss.exe 115 PID 3528 wrote to memory of 3192 3528 csrss.exe 115 PID 3528 wrote to memory of 4280 3528 csrss.exe 117 PID 3528 wrote to memory of 4280 3528 csrss.exe 117 -
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\811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe"C:\Users\Admin\AppData\Local\Temp\811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1008 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3900
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C:\Users\Admin\AppData\Local\Temp\811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.exe"C:\Users\Admin\AppData\Local\Temp\811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9.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:3340 -
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:4920
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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:1524 -
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:5072
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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:3920
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1432
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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:3528 -
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:4020 -
C:\Windows\System32\Conhost.exe\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV15⤵PID:3900
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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:4172
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4764
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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:696
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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:3192
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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:4280
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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:5028 -
C:\Windows\System32\Conhost.exe\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV15⤵PID:1432
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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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5955076451562ff1aad6dd1687bb33020
SHA1a132f109982c5bb93814141d8bfbf07981373f35
SHA2565ad6809191d792e7e0bf9807e022401f9228a5df6b44c7d8dfa8a27526248f65
SHA5120999e979b0ef3294c307f7478860ae5919353723ac30840d78414269d48f6d71339114f02e464bce50cf928117057af066a516bb05ee1df4ac8a01b2d4c6d482
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54723769211a8548d0fbba2c09a0f3bf5
SHA1b8903ed7045de3394767532c36938e281653d91c
SHA256aeacfa894766966723692a3ff50e363a97db83799419751253ff9f2ef1c4b50b
SHA512cf9c3153e5e6de02ef868500df8c2af84dd1c51acfaef44686b014418273f7d38e2b145319db9f0c5a0a56394f9d322a6998baf4a1bc912458e864988cd796f8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57905e531a1838db86bcd01b07710f4f9
SHA153e71b227614ce12142dc22390362a52e56bb043
SHA2568bebb91234cc11046429e866f9f985f30cdab74e1f1173dd26999fcbfde2a3de
SHA51221b8f3a8cb1f48afcfc0315f4835beddc33660f9753cb55ddf883c69a41764180fbe912aa9d59175f28ac3394aca63989002c9c87e710307bf548fde0ccfb290
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57cf4320cca122dc75ab2180f3d83cd3d
SHA1884dc905bc5a5c1644244b4d571b146f476c2714
SHA256dab17a39fbd514260b9e2a3fd714bb4282c421ab83cb449587db6d7f620a3c97
SHA5123b948f14dadd6256f1d2fc26e1b943780f2eb570869b83d6b52fb0614e9ae706ee7026d0d39ef6d1575c5d03079a41ee6d5a7cb81c5712d0baea21e0d3c907f3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD573b9c537ddea836dc722f73d423570e9
SHA129c2368f5d54095b5058a326fe5b83d3d6b7193c
SHA2561589387ce323606cb1cc28698be8ddafcf70a5e7f8ad62621afde8b1d7ebaa5a
SHA512e4246b170df77760c367ac168e5092646422ea8f8834b59c527b1a2099b6bb15543381cca8ba36625c7e9c49040675a0b3190c471da9351035a92afea32dab3c
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Filesize
4.1MB
MD5e28c736b12b9ffec924ee1ce8d2f3874
SHA1d35c058e813ad02bd2b9950b3c7500d8847320c0
SHA256811e781c0daf7f48574648d645cfe18748f98050cd0e9082c0cb6bad733e73b9
SHA51252970ae631da7a457c0d9a78cdb7783570dddb2f78bd060a68b777a89e803bfd1958b1e7cd64d0c12e4a58abbd716abc8a710499c96eee04d9ee2e1a2803f8a8