Analysis
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max time kernel
150s -
max time network
118s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
30-04-2024 12:53
Static task
static1
Behavioral task
behavioral1
Sample
55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe
Resource
win10v2004-20240419-en
General
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Target
55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe
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Size
4.1MB
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MD5
2ef773faaded4cb6c8a7ebb7038a9dd5
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SHA1
c4a25a40b999bce820748fb946c6441d0d14063f
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SHA256
55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8
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SHA512
68965d9a2db2b424f9235e3122d88cb66880353e7fd020c6d1b0300c3f4e7497851c5904a8036c97efa9689774f729e3f519e2b82ba41f1146a64505a9edea69
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SSDEEP
98304:NGYvCLt5aQiAK2wyGz1OLfGENz3JpGXVr8u4xDOwX:sYqL+Qi5Tz1CfhXyt8u4hzX
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral1/memory/2812-2-0x0000000003EA0000-0x000000000478B000-memory.dmp family_glupteba behavioral1/memory/2812-3-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral1/memory/2812-55-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral1/memory/2812-56-0x0000000003EA0000-0x000000000478B000-memory.dmp family_glupteba behavioral1/memory/2432-136-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral1/memory/1872-164-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral1/memory/1872-214-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral1/memory/1872-220-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral1/memory/1872-221-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral1/memory/1872-222-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral1/memory/1872-223-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral1/memory/1872-224-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral1/memory/1872-225-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral1/memory/1872-226-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral1/memory/1872-227-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral1/memory/1872-228-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral1/memory/1872-229-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba behavioral1/memory/1872-230-0x0000000000400000-0x0000000001DF1000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1120 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 1872 csrss.exe 4460 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe File created C:\Windows\rss\csrss.exe 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 3888 2812 WerFault.exe 83 404 2432 WerFault.exe 92 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4676 schtasks.exe 2396 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.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,-2392 = "Aleutian Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs 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\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root 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,-162 = "Central Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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,-1971 = "Belarus Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates 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\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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,-12 = "Azores Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3560 powershell.exe 3560 powershell.exe 2812 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 2812 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 2184 powershell.exe 2184 powershell.exe 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 912 powershell.exe 912 powershell.exe 4856 powershell.exe 4856 powershell.exe 5012 powershell.exe 5012 powershell.exe 4404 powershell.exe 4404 powershell.exe 2976 powershell.exe 2976 powershell.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 1872 csrss.exe 1872 csrss.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 1872 csrss.exe 1872 csrss.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe 4460 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 3560 powershell.exe Token: SeDebugPrivilege 2812 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Token: SeImpersonatePrivilege 2812 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe Token: SeDebugPrivilege 2184 powershell.exe Token: SeDebugPrivilege 912 powershell.exe Token: SeDebugPrivilege 4856 powershell.exe Token: SeDebugPrivilege 5012 powershell.exe Token: SeDebugPrivilege 4404 powershell.exe Token: SeDebugPrivilege 2976 powershell.exe Token: SeSystemEnvironmentPrivilege 1872 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2812 wrote to memory of 3560 2812 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 87 PID 2812 wrote to memory of 3560 2812 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 87 PID 2812 wrote to memory of 3560 2812 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 87 PID 2432 wrote to memory of 2184 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 96 PID 2432 wrote to memory of 2184 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 96 PID 2432 wrote to memory of 2184 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 96 PID 2432 wrote to memory of 3332 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 98 PID 2432 wrote to memory of 3332 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 98 PID 3332 wrote to memory of 1120 3332 cmd.exe 100 PID 3332 wrote to memory of 1120 3332 cmd.exe 100 PID 2432 wrote to memory of 912 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 101 PID 2432 wrote to memory of 912 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 101 PID 2432 wrote to memory of 912 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 101 PID 2432 wrote to memory of 4856 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 103 PID 2432 wrote to memory of 4856 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 103 PID 2432 wrote to memory of 4856 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 103 PID 2432 wrote to memory of 1872 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 105 PID 2432 wrote to memory of 1872 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 105 PID 2432 wrote to memory of 1872 2432 55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe 105 PID 1872 wrote to memory of 5012 1872 csrss.exe 108 PID 1872 wrote to memory of 5012 1872 csrss.exe 108 PID 1872 wrote to memory of 5012 1872 csrss.exe 108 PID 1872 wrote to memory of 4404 1872 csrss.exe 115 PID 1872 wrote to memory of 4404 1872 csrss.exe 115 PID 1872 wrote to memory of 4404 1872 csrss.exe 115 PID 1872 wrote to memory of 2976 1872 csrss.exe 117 PID 1872 wrote to memory of 2976 1872 csrss.exe 117 PID 1872 wrote to memory of 2976 1872 csrss.exe 117 PID 1872 wrote to memory of 4460 1872 csrss.exe 119 PID 1872 wrote to memory of 4460 1872 csrss.exe 119 -
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\55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe"C:\Users\Admin\AppData\Local\Temp\55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2812 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3560
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C:\Users\Admin\AppData\Local\Temp\55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.exe"C:\Users\Admin\AppData\Local\Temp\55d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8.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:2432 -
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:2184
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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:3332 -
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:1120
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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:912
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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:4856
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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:1872 -
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:5012
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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:4676
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2692
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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:4404
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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:2976
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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:4460
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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:2396
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2432 -s 7443⤵
- Program crash
PID:404
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2812 -s 8882⤵
- Program crash
PID:3888
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2812 -ip 28121⤵PID:4484
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 2432 -ip 24321⤵PID:2660
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
MD53d086a433708053f9bf9523e1d87a4e8
SHA1b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA2566f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5061c783f7a93a2df8cc6577c60ed546b
SHA11ba02055e3d3502a81bba6527ffc357420f70f21
SHA256baec8882731ce384c2eae1c37d7c6ea3c1ac0b348c30bda73112cf0317a55a82
SHA5127c1c84d9d756a4297e958f19bd40621dd39ac7923d5cef13369685a846c27b5aacf0b898f862c92cdeb43366058f975ecda3e0fbbf3624814a5b938aba18284f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d512575573274938a98ff70b3f7d53cf
SHA14f266059dccec17c3043157f625274c2ea505e92
SHA25660ed91feb94effa6094a908a9c7dcbdeca42bcc25957288930090e75970397e7
SHA5120ac976dd77a21439739a5baf54c51d1972115b26ec018bb1abaecea41f84f09bc30bbbd303ee7985b07eaadef5f50c0837eee7a83013f810e3274bb4ffc78e5a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD579e85865bdab65aa1a9f6d7b4205b285
SHA1fde09485f5df175362022af0dbe1a6991dbbcb90
SHA256423bc4e64a7c33c8314653575c03c58eb08668120f21b0e9ec7a0b4c36eb88c3
SHA5122fc9122898fe333093452bb90aba68389587cf0a1d726332db6725703742f6791174d1ac8e50f38eb0c6dd402d949daf45e3e654e0a319551adebfb38e9e9726
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD58e49b46ab2de31708f142ee4471046aa
SHA1bcd733177c891dd903cb16adae41e391b58445f8
SHA25610f7f8fa1dda03733f8a7d347c776ee30aac40295230a59dc113a42478f33989
SHA5129a49b1b0b37988ac80dcbee992faaba11667b9c4020e7deb46c82b73cc67e35c59ab2a5b65567c0d0bf71a5c45f72fea2b7892addbbc0e306d1bbc1a495de77a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e9d236732d0713fa6576194b95921400
SHA186545febb288e1da7deabd53dae135d2e20fb29d
SHA256584842b6466c6649df150167354618ff742217a4846fc73048f040335565c2d5
SHA512709ca15d574e6e1b4dac91fee978a0d04391b99fd91902665d41f5c58bdd2c5db6a1a9ca7fdc7208344f636f8a1141a14ac689a1a1ce907f477b58b8e1b931ac
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Filesize
4.1MB
MD52ef773faaded4cb6c8a7ebb7038a9dd5
SHA1c4a25a40b999bce820748fb946c6441d0d14063f
SHA25655d227e396e70b259b36b3b482ac2af5a8c9325f4d337433a030daa9c183a5d8
SHA51268965d9a2db2b424f9235e3122d88cb66880353e7fd020c6d1b0300c3f4e7497851c5904a8036c97efa9689774f729e3f519e2b82ba41f1146a64505a9edea69